diff --git a/package.json b/package.json
index ff2e4ca..2981faf 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "license": "MIT",
   "dependencies": {
     "@fastify/static": "^8.2.0",
-    "@musistudio/llms": "^1.0.31",
+    "@musistudio/llms": "file:../../llms",
     "dotenv": "^16.4.7",
     "json5": "^2.2.3",
     "openurl": "^1.1.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 81ab13d..4f6922e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -12,8 +12,8 @@ importers:
         specifier: ^8.2.0
         version: 8.2.0
       '@musistudio/llms':
-        specifier: ^1.0.31
-        version: 1.0.31(ws@8.18.3)
+        specifier: file:../../llms
+        version: file:../../llms(ws@8.18.3)
       dotenv:
         specifier: ^16.4.7
         version: 16.6.1
@@ -266,8 +266,8 @@ packages:
     resolution: {integrity: sha512-9I2Zn6+NJLfaGoz9jN3lpwDgAYvfGeNYdbAIjJOqzs4Tpc+VU3Jqq4IofSUBKajiDS8k9fZIg18/z13mpk1bsA==}
     engines: {node: '>=8'}
 
-  '@musistudio/llms@1.0.31':
-    resolution: {integrity: sha512-zPzGAnpB60g6iGldfxzkzohTbUtrg7y1VnTNORRESnC2Fd/4XiSdIHoaURzp7RJ4hnTYkolDLMfvlmHUmdr9AA==}
+  '@musistudio/llms@file:../../llms':
+    resolution: {directory: ../../llms, type: directory}
 
   '@nodelib/fs.scandir@2.1.5':
     resolution: {integrity: sha512-vq24Bq3ym5HEQm2NKCr3yXDwjc7vTsEThRDnkp2DK9p1uqLR+DHurm/NOTo0KG7HYHU7eppKZj3MyqYuMBf62g==}
@@ -1108,7 +1108,7 @@ snapshots:
 
   '@lukeed/ms@2.0.2': {}
 
-  '@musistudio/llms@1.0.31(ws@8.18.3)':
+  '@musistudio/llms@file:../../llms(ws@8.18.3)':
     dependencies:
       '@anthropic-ai/sdk': 0.54.0
       '@fastify/cors': 11.1.0
diff --git a/src/index.ts b/src/index.ts
index c6273db..28fe238 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -118,7 +118,8 @@ async function run(options: RunOptions = {}) {
             path: HOME_DIR,
             maxFiles: 3,
             interval: "1d",
-            compress: 'gzip'
+            compress: 'gzip',
+            maxSize: "50M"
           }),
         }
       : false;
diff --git a/src/server.ts b/src/server.ts
index dad7bba..1547569 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -3,6 +3,8 @@ import { readConfigFile, writeConfigFile, backupConfigFile } from "./utils";
 import { checkForUpdates, performUpdate } from "./utils";
 import { join } from "path";
 import fastifyStatic from "@fastify/static";
+import { readdirSync, statSync, readFileSync, writeFileSync, existsSync } from "fs";
+import { homedir } from "os";
 
 export const createServer = (config: any): Server => {
   const server = new Server(config);
@@ -102,5 +104,149 @@ export const createServer = (config: any): Server => {
     }
   });
 
+  // 获取日志文件列表端点
+  server.app.get("/api/logs/files", async (req, reply) => {
+    try {
+      const logDir = join(homedir(), ".claude-code-router", "logs");
+      const logFiles: Array<{ name: string; path: string; size: number; lastModified: string }> = [];
+
+      if (existsSync(logDir)) {
+        const files = readdirSync(logDir);
+        
+        for (const file of files) {
+          if (file.endsWith('.log')) {
+            const filePath = join(logDir, file);
+            const stats = statSync(filePath);
+            
+            logFiles.push({
+              name: file,
+              path: filePath,
+              size: stats.size,
+              lastModified: stats.mtime.toISOString()
+            });
+          }
+        }
+        
+        // 按修改时间倒序排列
+        logFiles.sort((a, b) => new Date(b.lastModified).getTime() - new Date(a.lastModified).getTime());
+      }
+
+      return logFiles;
+    } catch (error) {
+      console.error("Failed to get log files:", error);
+      reply.status(500).send({ error: "Failed to get log files" });
+    }
+  });
+
+  // 获取日志内容端点
+  server.app.get("/api/logs", async (req, reply) => {
+    try {
+      const filePath = (req.query as any).file as string;
+      const groupByReqId = (req.query as any).groupByReqId === 'true';
+      let logFilePath: string;
+      
+      if (filePath) {
+        // 如果指定了文件路径，使用指定的路径
+        logFilePath = filePath;
+      } else {
+        // 如果没有指定文件路径，使用默认的日志文件路径
+        logFilePath = join(homedir(), ".claude-code-router", "logs", "app.log");
+      }
+
+      if (!existsSync(logFilePath)) {
+        return [];
+      }
+
+      const logContent = readFileSync(logFilePath, 'utf8');
+      const logLines = logContent.split('\n').filter(line => line.trim());
+      
+      const logs = logLines.map(line => {
+        try {
+          // 尝试解析JSON格式的日志
+          const logEntry = JSON.parse(line);
+          return {
+            timestamp: logEntry.timestamp || logEntry.time || new Date(logEntry.time).toISOString() || new Date().toISOString(),
+            level: logEntry.level || 'info',
+            message: logEntry.message || logEntry.msg || line,
+            source: logEntry.source || undefined,
+            reqId: logEntry.reqId || undefined
+          };
+        } catch {
+          // 如果不是JSON格式，创建一个基本的日志条目
+          return {
+            timestamp: new Date().toISOString(),
+            level: 'info',
+            message: line,
+            source: undefined,
+            reqId: undefined
+          };
+        }
+      });
+
+      // 如果需要按reqId聚合
+      if (groupByReqId) {
+        const groupedLogs: { [reqId: string]: typeof logs } = {};
+        
+        logs.forEach(log => {
+          const reqId = log.reqId || 'no-req-id';
+          if (!groupedLogs[reqId]) {
+            groupedLogs[reqId] = [];
+          }
+          groupedLogs[reqId].push(log);
+        });
+
+        // 按时间戳排序每个组的日志
+        Object.keys(groupedLogs).forEach(reqId => {
+          groupedLogs[reqId].sort((a, b) => new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime());
+        });
+
+        return {
+          grouped: true,
+          groups: groupedLogs,
+          summary: {
+            totalRequests: Object.keys(groupedLogs).length,
+            totalLogs: logs.length,
+            requests: Object.keys(groupedLogs).map(reqId => ({
+              reqId,
+              logCount: groupedLogs[reqId].length,
+              firstLog: groupedLogs[reqId][0]?.timestamp,
+              lastLog: groupedLogs[reqId][groupedLogs[reqId].length - 1]?.timestamp
+            }))
+          }
+        };
+      }
+
+      return logs;
+    } catch (error) {
+      console.error("Failed to get logs:", error);
+      reply.status(500).send({ error: "Failed to get logs" });
+    }
+  });
+
+  // 清除日志内容端点
+  server.app.delete("/api/logs", async (req, reply) => {
+    try {
+      const filePath = (req.query as any).file as string;
+      let logFilePath: string;
+      
+      if (filePath) {
+        // 如果指定了文件路径，使用指定的路径
+        logFilePath = filePath;
+      } else {
+        // 如果没有指定文件路径，使用默认的日志文件路径
+        logFilePath = join(homedir(), ".claude-code-router", "logs", "app.log");
+      }
+
+      if (existsSync(logFilePath)) {
+        writeFileSync(logFilePath, '', 'utf8');
+      }
+
+      return { success: true, message: "Logs cleared successfully" };
+    } catch (error) {
+      console.error("Failed to clear logs:", error);
+      reply.status(500).send({ error: "Failed to clear logs" });
+    }
+  });
+
   return server;
 };
diff --git a/ui/src/App.tsx b/ui/src/App.tsx
index bce45f8..b641680 100644
--- a/ui/src/App.tsx
+++ b/ui/src/App.tsx
@@ -6,10 +6,11 @@ import { Transformers } from "@/components/Transformers";
 import { Providers } from "@/components/Providers";
 import { Router } from "@/components/Router";
 import { JsonEditor } from "@/components/JsonEditor";
+import { LogViewer } from "@/components/LogViewer";
 import { Button } from "@/components/ui/button";
 import { useConfig } from "@/components/ConfigProvider";
 import { api } from "@/lib/api";
-import { Settings, Languages, Save, RefreshCw, FileJson, CircleArrowUp } from "lucide-react";
+import { Settings, Languages, Save, RefreshCw, FileJson, CircleArrowUp, FileText } from "lucide-react";
 import {
   Popover,
   PopoverContent,
@@ -32,6 +33,7 @@ function App() {
   const { config, error } = useConfig();
   const [isSettingsOpen, setIsSettingsOpen] = useState(false);
   const [isJsonEditorOpen, setIsJsonEditorOpen] = useState(false);
+  const [isLogViewerOpen, setIsLogViewerOpen] = useState(false);
   const [isCheckingAuth, setIsCheckingAuth] = useState(true);
   const [toast, setToast] = useState<{ message: string; type: 'success' | 'error' | 'warning' } | null>(null);
   // 版本检查状态
@@ -276,6 +278,9 @@ function App() {
           <Button variant="ghost" size="icon" onClick={() => setIsJsonEditorOpen(true)} className="transition-all-ease hover:scale-110">
             <FileJson className="h-5 w-5" />
           </Button>
+          <Button variant="ghost" size="icon" onClick={() => setIsLogViewerOpen(true)} className="transition-all-ease hover:scale-110">
+            <FileText className="h-5 w-5" />
+          </Button>
           <Popover>
             <PopoverTrigger asChild>
               <Button variant="ghost" size="icon" className="transition-all-ease hover:scale-110">
@@ -350,6 +355,11 @@ function App() {
         onOpenChange={setIsJsonEditorOpen} 
         showToast={(message, type) => setToast({ message, type })} 
       />
+      <LogViewer 
+        open={isLogViewerOpen} 
+        onOpenChange={setIsLogViewerOpen} 
+        showToast={(message, type) => setToast({ message, type })} 
+      />
       {/* 版本更新对话框 */}
       <Dialog open={isUpdateDialogOpen} onOpenChange={setIsUpdateDialogOpen}>
         <DialogContent className="max-w-2xl">
diff --git a/ui/src/components/LogViewer.tsx b/ui/src/components/LogViewer.tsx
new file mode 100644
index 0000000..7f4c848
--- /dev/null
+++ b/ui/src/components/LogViewer.tsx
@@ -0,0 +1,683 @@
+import React, { useState, useEffect, useRef } from 'react';
+import Editor from '@monaco-editor/react';
+import { Button } from '@/components/ui/button';
+import { api } from '@/lib/api';
+import { useTranslation } from 'react-i18next';
+import { X, RefreshCw, Download, Trash2, ArrowLeft, File, Layers } from 'lucide-react';
+
+interface LogViewerProps {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  showToast?: (message: string, type: 'success' | 'error' | 'warning') => void;
+}
+
+interface LogEntry {
+  timestamp: string;
+  level: 'info' | 'warn' | 'error' | 'debug';
+  message: string;
+  source?: string;
+  reqId?: string;
+}
+
+interface LogFile {
+  name: string;
+  path: string;
+  size: number;
+  lastModified: string;
+}
+
+interface GroupedLogs {
+  [reqId: string]: LogEntry[];
+}
+
+interface LogGroupSummary {
+  reqId: string;
+  logCount: number;
+  firstLog: string;
+  lastLog: string;
+}
+
+interface GroupedLogsResponse {
+  grouped: boolean;
+  groups: { [reqId: string]: LogEntry[] };
+  summary: {
+    totalRequests: number;
+    totalLogs: number;
+    requests: LogGroupSummary[];
+  };
+}
+
+export function LogViewer({ open, onOpenChange, showToast }: LogViewerProps) {
+  const { t } = useTranslation();
+  const [logs, setLogs] = useState<LogEntry[]>([]);
+  const [logFiles, setLogFiles] = useState<LogFile[]>([]);
+  const [selectedFile, setSelectedFile] = useState<LogFile | null>(null);
+  const [isLoading, setIsLoading] = useState(false);
+  const [isVisible, setIsVisible] = useState(false);
+  const [isAnimating, setIsAnimating] = useState(false);
+  const [autoRefresh, setAutoRefresh] = useState(false);
+  const [groupByReqId, setGroupByReqId] = useState(false);
+  const [groupedLogs, setGroupedLogs] = useState<GroupedLogsResponse | null>(null);
+  const [selectedReqId, setSelectedReqId] = useState<string | null>(null);
+  const containerRef = useRef<HTMLDivElement>(null);
+  const refreshInterval = useRef<NodeJS.Timeout | null>(null);
+  const workerRef = useRef<Worker | null>(null);
+
+  useEffect(() => {
+    if (open) {
+      loadLogFiles();
+    }
+  }, [open]);
+
+  // 创建内联 Web Worker
+  const createInlineWorker = (): Worker => {
+    const workerCode = `
+      // 日志聚合Web Worker
+      self.onmessage = function(event) {
+        const { type, data } = event.data;
+        
+        if (type === 'groupLogsByReqId') {
+          try {
+            const { logs } = data;
+            
+            // 按reqId聚合日志
+            const groupedLogs = {};
+            
+            logs.forEach((log, index) => {
+              let reqId = log.reqId;
+              
+              // 如果没有reqId，尝试从message字段中的JSON解析
+              if (!reqId && log.message && log.message.startsWith('{')) {
+                try {
+                  const messageObj = JSON.parse(log.message);
+                  reqId = messageObj.reqId;
+                } catch (e) {
+                  // 解析失败，忽略
+                }
+              }
+              
+              reqId = reqId || 'no-req-id';
+              
+              if (!groupedLogs[reqId]) {
+                groupedLogs[reqId] = [];
+              }
+              groupedLogs[reqId].push(log);
+            });
+
+            // 按时间戳排序每个组的日志
+            Object.keys(groupedLogs).forEach(reqId => {
+              groupedLogs[reqId].sort((a, b) => new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime());
+            });
+
+            // 生成摘要信息
+            const summary = {
+              totalRequests: Object.keys(groupedLogs).length,
+              totalLogs: logs.length,
+              requests: Object.keys(groupedLogs).map(reqId => ({
+                reqId,
+                logCount: groupedLogs[reqId].length,
+                firstLog: groupedLogs[reqId][0]?.timestamp,
+                lastLog: groupedLogs[reqId][groupedLogs[reqId].length - 1]?.timestamp
+              }))
+            };
+
+            const response = {
+              grouped: true,
+              groups: groupedLogs,
+              summary
+            };
+
+            // 发送结果回主线程
+            self.postMessage({
+              type: 'groupLogsResult',
+              data: response
+            });
+          } catch (error) {
+            // 发送错误回主线程
+            self.postMessage({
+              type: 'error',
+              error: error instanceof Error ? error.message : 'Unknown error occurred'
+            });
+          }
+        }
+      };
+    `;
+
+    const blob = new Blob([workerCode], { type: 'application/javascript' });
+    const workerUrl = URL.createObjectURL(blob);
+    return new Worker(workerUrl);
+  };
+
+  // 初始化Web Worker
+  useEffect(() => {
+    if (typeof Worker !== 'undefined') {
+      try {
+        // 创建内联Web Worker
+        workerRef.current = createInlineWorker();
+
+        // 监听Worker消息
+        workerRef.current.onmessage = (event) => {
+          const { type, data, error } = event.data;
+          
+          if (type === 'groupLogsResult') {
+            setGroupedLogs(data);
+          } else if (type === 'error') {
+            console.error('Worker error:', error);
+            if (showToast) {
+              showToast(t('log_viewer.worker_error') + ': ' + error, 'error');
+            }
+          }
+        };
+
+        // 监听Worker错误
+        workerRef.current.onerror = (error) => {
+          console.error('Worker error:', error);
+          if (showToast) {
+            showToast(t('log_viewer.worker_init_failed'), 'error');
+          }
+        };
+      } catch (error) {
+        console.error('Failed to create worker:', error);
+        if (showToast) {
+          showToast(t('log_viewer.worker_init_failed'), 'error');
+        }
+      }
+    }
+
+    // 清理Worker
+    return () => {
+      if (workerRef.current) {
+        workerRef.current.terminate();
+        workerRef.current = null;
+      }
+    };
+  }, [showToast, t]);
+
+  useEffect(() => {
+    if (autoRefresh && open && selectedFile) {
+      refreshInterval.current = setInterval(() => {
+        loadLogs();
+      }, 5000); // Refresh every 5 seconds
+    } else if (refreshInterval.current) {
+      clearInterval(refreshInterval.current);
+    }
+
+    return () => {
+      if (refreshInterval.current) {
+        clearInterval(refreshInterval.current);
+      }
+    };
+  }, [autoRefresh, open, selectedFile]);
+
+  // Load logs when selected file changes
+  useEffect(() => {
+    if (selectedFile && open) {
+      setLogs([]); // Clear existing logs
+      loadLogs();
+    }
+  }, [selectedFile, open]);
+
+  // Handle open/close animations
+  useEffect(() => {
+    if (open) {
+      setIsVisible(true);
+      // Trigger the animation after a small delay to ensure the element is rendered
+      requestAnimationFrame(() => {
+        setIsAnimating(true);
+      });
+    } else {
+      setIsAnimating(false);
+      // Wait for the animation to complete before hiding
+      const timer = setTimeout(() => {
+        setIsVisible(false);
+      }, 300);
+      return () => clearTimeout(timer);
+    }
+  }, [open]);
+
+  const loadLogFiles = async () => {
+    try {
+      setIsLoading(true);
+      const response = await api.getLogFiles();
+      
+      if (response && Array.isArray(response)) {
+        setLogFiles(response);
+        setSelectedFile(null);
+        setLogs([]);
+      } else {
+        setLogFiles([]);
+        if (showToast) {
+          showToast(t('log_viewer.no_log_files_available'), 'warning');
+        }
+      }
+    } catch (error) {
+      console.error('Failed to load log files:', error);
+      if (showToast) {
+        showToast(t('log_viewer.load_files_failed') + ': ' + (error as Error).message, 'error');
+      }
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  const loadLogs = async () => {
+    if (!selectedFile) return;
+    
+    try {
+      setIsLoading(true);
+      setGroupedLogs(null);
+      setSelectedReqId(null);
+      
+      // 始终加载原始日志数据
+      const response = await api.getLogs(selectedFile.path);
+      
+      if (response && Array.isArray(response)) {
+        const typedLogs: LogEntry[] = response.map(log => ({
+          ...log,
+          level: (log.level as 'info' | 'warn' | 'error' | 'debug') || 'info'
+        }));
+        
+        setLogs(typedLogs);
+        
+        // 如果启用了分组，使用Web Worker进行聚合
+        if (groupByReqId && workerRef.current) {
+          workerRef.current.postMessage({
+            type: 'groupLogsByReqId',
+            data: { logs: typedLogs }
+          });
+        } else {
+          setGroupedLogs(null);
+        }
+      } else {
+        setLogs([]);
+        setGroupedLogs(null);
+        if (showToast) {
+          showToast(t('log_viewer.no_logs_available'), 'warning');
+        }
+      }
+    } catch (error) {
+      console.error('Failed to load logs:', error);
+      if (showToast) {
+        showToast(t('log_viewer.load_failed') + ': ' + (error as Error).message, 'error');
+      }
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  const clearLogs = async () => {
+    if (!selectedFile) return;
+    
+    try {
+      await api.clearLogs(selectedFile.path);
+      setLogs([]);
+      if (showToast) {
+        showToast(t('log_viewer.logs_cleared'), 'success');
+      }
+    } catch (error) {
+      console.error('Failed to clear logs:', error);
+      if (showToast) {
+        showToast(t('log_viewer.clear_failed') + ': ' + (error as Error).message, 'error');
+      }
+    }
+  };
+
+  const selectFile = (file: LogFile) => {
+    setSelectedFile(file);
+    setAutoRefresh(false); // Reset auto refresh when changing files
+  };
+
+  
+  const toggleGroupByReqId = () => {
+    const newValue = !groupByReqId;
+    setGroupByReqId(newValue);
+    
+    if (newValue && selectedFile && logs.length > 0) {
+      // 启用聚合时，如果已有日志，则使用Worker进行聚合
+      if (workerRef.current) {
+        workerRef.current.postMessage({
+          type: 'groupLogsByReqId',
+          data: { logs }
+        });
+      }
+    } else if (!newValue) {
+      // 禁用聚合时，清除聚合结果
+      setGroupedLogs(null);
+      setSelectedReqId(null);
+    }
+  };
+
+  const selectReqId = (reqId: string) => {
+    setSelectedReqId(reqId);
+  };
+
+  
+  const getDisplayLogs = () => {
+    if (groupByReqId && groupedLogs) {
+      if (selectedReqId && groupedLogs.groups[selectedReqId]) {
+        return groupedLogs.groups[selectedReqId];
+      }
+      return logs;
+    }
+    return logs;
+  };
+
+  const downloadLogs = () => {
+    if (!selectedFile || logs.length === 0) return;
+    
+    const logText = logs.map(log => 
+      `[${log.timestamp}] [${log.level.toUpperCase()}] ${log.source ? `[${log.source}] ` : ''}${log.message}`
+    ).join('\n');
+
+    const blob = new Blob([logText], { type: 'text/plain' });
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement('a');
+    a.href = url;
+    a.download = `${selectedFile.name}-${new Date().toISOString().split('T')[0]}.txt`;
+    document.body.appendChild(a);
+    a.click();
+    document.body.removeChild(a);
+    URL.revokeObjectURL(url);
+    
+    if (showToast) {
+      showToast(t('log_viewer.logs_downloaded'), 'success');
+    }
+  };
+
+  const formatFileSize = (bytes: number) => {
+    if (bytes === 0) return '0 Bytes';
+    const k = 1024;
+    const sizes = ['Bytes', 'KB', 'MB', 'GB'];
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
+  };
+
+  const formatDate = (dateString: string) => {
+    return new Date(dateString).toLocaleString();
+  };
+
+  // 面包屑导航项类型
+  interface BreadcrumbItem {
+    id: string;
+    label: string;
+    onClick: () => void;
+  }
+
+  // 获取面包屑导航项
+  const getBreadcrumbs = (): BreadcrumbItem[] => {
+    const breadcrumbs: BreadcrumbItem[] = [
+      {
+        id: 'root',
+        label: t('log_viewer.title'),
+        onClick: () => {
+          setSelectedFile(null);
+          setAutoRefresh(false);
+          setLogs([]);
+          setGroupedLogs(null);
+          setSelectedReqId(null);
+          setGroupByReqId(false);
+        }
+      }
+    ];
+
+    if (selectedFile) {
+      breadcrumbs.push({
+        id: 'file',
+        label: selectedFile.name,
+        onClick: () => {
+          setSelectedReqId(null);
+          setGroupedLogs(null);
+          setGroupByReqId(false);
+        }
+      });
+    }
+
+    if (selectedReqId) {
+      breadcrumbs.push({
+        id: 'req',
+        label: `${t('log_viewer.request')} ${selectedReqId}`,
+        onClick: () => {
+          // 点击当前层级时不做任何操作
+        }
+      });
+    }
+
+    return breadcrumbs;
+  };
+
+  // 获取返回按钮的处理函数
+  const getBackAction = (): (() => void) | null => {
+    if (selectedReqId) {
+      return () => {
+        setSelectedReqId(null);
+      };
+    } else if (selectedFile) {
+      return () => {
+        setSelectedFile(null);
+        setAutoRefresh(false);
+        setLogs([]);
+        setGroupedLogs(null);
+        setSelectedReqId(null);
+        setGroupByReqId(false);
+      };
+    }
+    return null;
+  };
+
+  const formatLogsForEditor = () => {
+    const displayLogs = getDisplayLogs();
+    return JSON.stringify(displayLogs, null, 2);
+  };
+
+  if (!isVisible && !open) {
+    return null;
+  }
+
+  return (
+    <>
+      {(isVisible || open) && (
+        <div 
+          className={`fixed inset-0 z-50 transition-all duration-300 ease-out ${
+            isAnimating && open ? 'bg-black/50 opacity-100' : 'bg-black/0 opacity-0 pointer-events-none'
+          }`}
+          onClick={() => onOpenChange(false)}
+        />
+      )}
+      
+      <div 
+        ref={containerRef}
+        className={`fixed bottom-0 left-0 right-0 z-50 flex flex-col bg-white shadow-2xl transition-all duration-300 ease-out transform ${
+          isAnimating && open ? 'translate-y-0' : 'translate-y-full'
+        }`}
+        style={{ 
+          height: '100vh',
+          maxHeight: '100vh'
+        }}
+      >
+        <div className="flex items-center justify-between border-b p-4">
+          <div className="flex items-center gap-2">
+            {getBackAction() && (
+              <Button
+                variant="ghost"
+                size="sm"
+                onClick={getBackAction()!}
+              >
+                <ArrowLeft className="h-4 w-4 mr-2" />
+                {t('log_viewer.back')}
+              </Button>
+            )}
+            
+            {/* 面包屑导航 */}
+            <nav className="flex items-center space-x-1 text-sm">
+              {getBreadcrumbs().map((breadcrumb, index) => (
+                <React.Fragment key={breadcrumb.id}>
+                  {index > 0 && (
+                    <span className="text-gray-400 mx-1">/</span>
+                  )}
+                  {index === getBreadcrumbs().length - 1 ? (
+                    <span className="text-gray-900 font-medium">
+                      {breadcrumb.label}
+                    </span>
+                  ) : (
+                    <button
+                      onClick={breadcrumb.onClick}
+                      className="text-blue-600 hover:text-blue-800 transition-colors"
+                    >
+                      {breadcrumb.label}
+                    </button>
+                  )}
+                </React.Fragment>
+              ))}
+            </nav>
+          </div>
+          <div className="flex gap-2">
+            {selectedFile && (
+              <>
+                <Button
+                  variant="ghost"
+                  size="sm"
+                  onClick={toggleGroupByReqId}
+                  className={groupByReqId ? 'bg-blue-100 text-blue-700' : ''}
+                >
+                  <Layers className="h-4 w-4 mr-2" />
+                  {groupByReqId ? t('log_viewer.grouped_on') : t('log_viewer.group_by_req_id')}
+                </Button>
+                <Button
+                  variant="ghost"
+                  size="sm"
+                  onClick={() => setAutoRefresh(!autoRefresh)}
+                  className={autoRefresh ? 'bg-blue-100 text-blue-700' : ''}
+                >
+                  <RefreshCw className={`h-4 w-4 mr-2 ${autoRefresh ? 'animate-spin' : ''}`} />
+                  {autoRefresh ? t('log_viewer.auto_refresh_on') : t('log_viewer.auto_refresh_off')}
+                </Button>
+                <Button
+                  variant="outline"
+                  size="sm"
+                  onClick={downloadLogs}
+                  disabled={logs.length === 0}
+                >
+                  <Download className="h-4 w-4 mr-2" />
+                  {t('log_viewer.download')}
+                </Button>
+                <Button
+                  variant="outline"
+                  size="sm"
+                  onClick={clearLogs}
+                  disabled={logs.length === 0}
+                >
+                  <Trash2 className="h-4 w-4 mr-2" />
+                  {t('log_viewer.clear')}
+                </Button>
+              </>
+            )}
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => onOpenChange(false)}
+            >
+              <X className="h-4 w-4 mr-2" />
+              {t('log_viewer.close')}
+            </Button>
+          </div>
+        </div>
+        
+        <div className="flex-1 min-h-0 bg-gray-50">
+          {isLoading ? (
+            <div className="flex items-center justify-center h-full">
+              <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-600"></div>
+            </div>
+          ) : selectedFile ? (
+            <>
+              {groupByReqId && groupedLogs && !selectedReqId ? (
+                // 显示日志组列表
+                <div className="flex flex-col h-full p-6">
+                  <div className="mb-4 flex-shrink-0">
+                    <h3 className="text-lg font-medium mb-2">{t('log_viewer.request_groups')}</h3>
+                    <p className="text-sm text-gray-600">
+                      {t('log_viewer.total_requests')}: {groupedLogs.summary.totalRequests} | 
+                      {t('log_viewer.total_logs')}: {groupedLogs.summary.totalLogs}
+                    </p>
+                  </div>
+                  <div className="flex-1 min-h-0 overflow-y-auto space-y-3">
+                    {groupedLogs.summary.requests.map((request) => (
+                      <div
+                        key={request.reqId}
+                        className="border rounded-lg p-4 hover:bg-gray-50 cursor-pointer transition-colors"
+                        onClick={() => selectReqId(request.reqId)}
+                      >
+                        <div className="flex items-center justify-between mb-2">
+                          <div className="flex items-center gap-2">
+                            <File className="h-5 w-5 text-blue-600" />
+                            <span className="font-medium text-sm">{request.reqId}</span>
+                          </div>
+                          <span className="text-xs bg-blue-100 text-blue-800 px-2 py-1 rounded">
+                            {request.logCount} {t('log_viewer.logs')}
+                          </span>
+                        </div>
+                        <div className="text-xs text-gray-500 space-y-1">
+                          <div>{t('log_viewer.first_log')}: {formatDate(request.firstLog)}</div>
+                          <div>{t('log_viewer.last_log')}: {formatDate(request.lastLog)}</div>
+                        </div>
+                      </div>
+                    ))}
+                  </div>
+                </div>
+              ) : (
+                // 显示日志内容
+                <Editor
+                  height="100%"
+                  defaultLanguage="json"
+                  value={formatLogsForEditor()}
+                  theme="vs"
+                  options={{
+                    minimap: { enabled: true },
+                    fontSize: 14,
+                    scrollBeyondLastLine: false,
+                    automaticLayout: true,
+                    wordWrap: 'on',
+                    readOnly: true,
+                    lineNumbers: 'on',
+                    folding: true,
+                    renderWhitespace: 'all',
+                  }}
+                />
+              )}
+            </>
+          ) : (
+            <div className="p-6">
+              <h3 className="text-lg font-medium mb-4">{t('log_viewer.select_file')}</h3>
+              {logFiles.length === 0 ? (
+                <div className="text-gray-500 text-center py-8">
+                  <File className="h-12 w-12 mx-auto mb-4 text-gray-400" />
+                  <p>{t('log_viewer.no_log_files_available')}</p>
+                </div>
+              ) : (
+                <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
+                  {logFiles.map((file) => (
+                    <div
+                      key={file.path}
+                      className="border rounded-lg p-4 hover:bg-gray-50 cursor-pointer transition-colors"
+                      onClick={() => selectFile(file)}
+                    >
+                      <div className="flex items-start justify-between mb-2">
+                        <div className="flex items-center gap-2">
+                          <File className="h-5 w-5 text-blue-600" />
+                          <span className="font-medium text-sm">{file.name}</span>
+                        </div>
+                      </div>
+                      <div className="text-xs text-gray-500 space-y-1">
+                        <div>{formatFileSize(file.size)}</div>
+                        <div>{formatDate(file.lastModified)}</div>
+                      </div>
+                    </div>
+                  ))}
+                </div>
+              )}
+            </div>
+          )}
+        </div>
+      </div>
+    </>
+  );
+}
\ No newline at end of file
diff --git a/ui/src/lib/api.ts b/ui/src/lib/api.ts
index 70f3314..9090741 100644
--- a/ui/src/lib/api.ts
+++ b/ui/src/lib/api.ts
@@ -1,5 +1,21 @@
 import type { Config, Provider, Transformer } from '@/types';
 
+// 日志聚合响应类型
+interface GroupedLogsResponse {
+  grouped: boolean;
+  groups: { [reqId: string]: Array<{ timestamp: string; level: string; message: string; source?: string; reqId?: string }> };
+  summary: {
+    totalRequests: number;
+    totalLogs: number;
+    requests: Array<{
+      reqId: string;
+      logCount: number;
+      firstLog: string;
+      lastLog: string;
+    }>;
+  };
+}
+
 // API Client Class for handling requests with baseUrl and apikey authentication
 class ApiClient {
   private baseUrl: string;
@@ -204,6 +220,21 @@ class ApiClient {
   async performUpdate(): Promise<{ success: boolean; message: string }> {
     return this.post<{ success: boolean; message: string }>('/api/update/perform', {});
   }
+  
+  // Get log files list
+  async getLogFiles(): Promise<Array<{ name: string; path: string; size: number; lastModified: string }>> {
+    return this.get<Array<{ name: string; path: string; size: number; lastModified: string }>>('/logs/files');
+  }
+  
+  // Get logs from specific file
+  async getLogs(filePath: string): Promise<Array<{ timestamp: string; level: string; message: string; source?: string; reqId?: string }>> {
+    return this.get<Array<{ timestamp: string; level: string; message: string; source?: string; reqId?: string }>>(`/logs?file=${encodeURIComponent(filePath)}`);
+  }
+  
+  // Clear logs from specific file
+  async clearLogs(filePath: string): Promise<void> {
+    return this.delete<void>(`/logs?file=${encodeURIComponent(filePath)}`);
+  }
 }
 
 // Create a default instance of the API client
diff --git a/ui/src/locales/en.json b/ui/src/locales/en.json
index ca3316a..201cb56 100644
--- a/ui/src/locales/en.json
+++ b/ui/src/locales/en.json
@@ -193,5 +193,36 @@
     "template_download_success": "Template downloaded successfully",
     "template_download_success_desc": "Configuration template has been downloaded to your device",
     "template_download_failed": "Failed to download template"
+  },
+  "log_viewer": {
+    "title": "Log Viewer",
+    "close": "Close",
+    "download": "Download",
+    "clear": "Clear",
+    "auto_refresh_on": "Auto Refresh On",
+    "auto_refresh_off": "Auto Refresh Off",
+    "load_failed": "Failed to load logs",
+    "no_logs_available": "No logs available",
+    "logs_cleared": "Logs cleared successfully",
+    "clear_failed": "Failed to clear logs",
+    "logs_downloaded": "Logs downloaded successfully",
+    "back_to_files": "Back to Files",
+    "select_file": "Select a log file to view",
+    "no_log_files_available": "No log files available",
+    "load_files_failed": "Failed to load log files",
+    "group_by_req_id": "Group by Request ID",
+    "grouped_on": "Grouped",
+    "request_groups": "Request Groups",
+    "total_requests": "Total Requests",
+    "total_logs": "Total Logs",
+    "request": "Request",
+    "logs": "logs",
+    "first_log": "First Log",
+    "last_log": "Last Log",
+    "back_to_all_logs": "Back to All Logs",
+    "worker_error": "Worker error",
+    "worker_init_failed": "Failed to initialize worker",
+    "grouping_not_supported": "Log grouping not supported by server",
+    "back": "Back"
   }
 }
diff --git a/ui/src/locales/zh.json b/ui/src/locales/zh.json
index e28346c..0f994bb 100644
--- a/ui/src/locales/zh.json
+++ b/ui/src/locales/zh.json
@@ -193,5 +193,36 @@
     "template_download_success": "模板下载成功",
     "template_download_success_desc": "配置模板已下载到您的设备",
     "template_download_failed": "模板下载失败"
+  },
+  "log_viewer": {
+    "title": "日志查看器",
+    "close": "关闭",
+    "download": "下载",
+    "clear": "清除",
+    "auto_refresh_on": "自动刷新开启",
+    "auto_refresh_off": "自动刷新关闭",
+    "load_failed": "加载日志失败",
+    "no_logs_available": "暂无日志",
+    "logs_cleared": "日志清除成功",
+    "clear_failed": "清除日志失败",
+    "logs_downloaded": "日志下载成功",
+    "back_to_files": "返回文件列表",
+    "select_file": "选择要查看的日志文件",
+    "no_log_files_available": "暂无日志文件",
+    "load_files_failed": "加载日志文件失败",
+    "group_by_req_id": "按请求ID分组",
+    "grouped_on": "已分组",
+    "request_groups": "请求组",
+    "total_requests": "总请求数",
+    "total_logs": "总日志数",
+    "request": "请求",
+    "logs": "条日志",
+    "first_log": "首条日志",
+    "last_log": "末条日志",
+    "back_to_all_logs": "返回所有日志",
+    "worker_error": "Worker错误",
+    "worker_init_failed": "Worker初始化失败",
+    "grouping_not_supported": "服务器不支持日志分组",
+    "back": "返回"
   }
 }
diff --git a/ui/tsconfig.tsbuildinfo b/ui/tsconfig.tsbuildinfo
index 862370a..78adc38 100644
--- a/ui/tsconfig.tsbuildinfo
+++ b/ui/tsconfig.tsbuildinfo
@@ -1 +1 @@
-{"root":["./src/app.tsx","./src/i18n.ts","./src/main.tsx","./src/routes.tsx","./src/types.ts","./src/vite-env.d.ts","./src/components/configprovider.tsx","./src/components/jsoneditor.tsx","./src/components/login.tsx","./src/components/protectedroute.tsx","./src/components/providerlist.tsx","./src/components/providers.tsx","./src/components/publicroute.tsx","./src/components/router.tsx","./src/components/settingsdialog.tsx","./src/components/statuslineconfigdialog.tsx","./src/components/statuslineimportexport.tsx","./src/components/transformerlist.tsx","./src/components/transformers.tsx","./src/components/ui/badge.tsx","./src/components/ui/button.tsx","./src/components/ui/card.tsx","./src/components/ui/color-picker.tsx","./src/components/ui/combo-input.tsx","./src/components/ui/combobox.tsx","./src/components/ui/command.tsx","./src/components/ui/dialog.tsx","./src/components/ui/input.tsx","./src/components/ui/label.tsx","./src/components/ui/multi-combobox.tsx","./src/components/ui/popover.tsx","./src/components/ui/switch.tsx","./src/components/ui/toast.tsx","./src/lib/api.ts","./src/lib/utils.ts","./src/utils/statusline.ts"],"version":"5.8.3"}
\ No newline at end of file
+{"root":["./src/app.tsx","./src/i18n.ts","./src/main.tsx","./src/routes.tsx","./src/types.ts","./src/vite-env.d.ts","./src/components/configprovider.tsx","./src/components/jsoneditor.tsx","./src/components/logviewer.tsx","./src/components/login.tsx","./src/components/protectedroute.tsx","./src/components/providerlist.tsx","./src/components/providers.tsx","./src/components/publicroute.tsx","./src/components/router.tsx","./src/components/settingsdialog.tsx","./src/components/statuslineconfigdialog.tsx","./src/components/statuslineimportexport.tsx","./src/components/transformerlist.tsx","./src/components/transformers.tsx","./src/components/ui/badge.tsx","./src/components/ui/button.tsx","./src/components/ui/card.tsx","./src/components/ui/color-picker.tsx","./src/components/ui/combo-input.tsx","./src/components/ui/combobox.tsx","./src/components/ui/command.tsx","./src/components/ui/dialog.tsx","./src/components/ui/input.tsx","./src/components/ui/label.tsx","./src/components/ui/multi-combobox.tsx","./src/components/ui/popover.tsx","./src/components/ui/switch.tsx","./src/components/ui/toast.tsx","./src/lib/api.ts","./src/lib/utils.ts","./src/utils/statusline.ts"],"version":"5.8.3"}
\ No newline at end of file