diff --git a/ROADMAP.md b/ROADMAP.md
index 618c961..4803c62 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -14,7 +14,7 @@
 ## P1 — 核心功能缺失
 
 - [x] **内存分析** — `MEMORY USAGE` 扫描所有 key，虚拟化列表，按大小排序，暂停/恢复，大小过滤
-- [ ] **命令日志** — 记录每次命令的耗时/连接/时间，最多 5000 条，只写模式过滤
+- [x] **命令日志** — 记录每次命令的耗时/连接/时间，最多 5000 条，只写模式过滤
 - [ ] **自动更新** — electron-updater 集成，启动检查，下载进度，发行说明
 - [ ] **多标签页** — 单连接支持同时打开 Status/Keys/CLI/SlowLog/内存分析/批量删除 多个标签
 - [ ] **多连接并行** — 同时打开多个连接，各自独立标签页
diff --git a/electron/main/ipc-handlers.ts b/electron/main/ipc-handlers.ts
index 84cc8e7..3e376b9 100644
--- a/electron/main/ipc-handlers.ts
+++ b/electron/main/ipc-handlers.ts
@@ -5,6 +5,21 @@ import store, { ConnectionConfig } from './store'
 import { encrypt, decrypt } from './credential'
 import * as redis from './redis'
 
+// Helper: wrap handler with command logging
+function withLog(cmd: string, fn: (...args: any[]) => any) {
+  return async (...args: any[]) => {
+    const start = Date.now()
+    try {
+      const result = await fn(...args)
+      redis.log('current', cmd, Date.now() - start)
+      return result
+    } catch (err) {
+      redis.log('current', cmd, Date.now() - start)
+      throw err
+    }
+  }
+}
+
 export function registerIpcHandlers(): void {
   // Window
   ipcMain.on('window:minimize', () => BrowserWindow.getFocusedWindow()?.minimize())
@@ -88,15 +103,15 @@ export function registerIpcHandlers(): void {
   })
 
   // Redis - 服务器
-  ipcMain.handle('redis:execute', async (_e, id: string, command: string, args: string[]) => {
+  ipcMain.handle('redis:execute', withLog('EXEC', async (_e, id: string, command: string, args: string[]) => {
     return redis.execute(id, command, args)
-  })
+  }))
   ipcMain.handle('redis:getInfo', async (_e, id: string) => {
     return redis.getServerInfo(id)
   })
-  ipcMain.handle('redis:selectDb', async (_e, id: string, db: number) => {
+  ipcMain.handle('redis:selectDb', withLog('SELECT', async (_e, id: string, db: number) => {
     await redis.selectDb(id, db)
-  })
+  }))
   ipcMain.handle('redis:dbSize', async (_e, id: string) => {
     return redis.dbSize(id)
   })
@@ -117,21 +132,21 @@ export function registerIpcHandlers(): void {
   ipcMain.handle('redis:getKeyTTL', async (_e, id: string, key: string) => {
     return redis.getKeyTTL(id, key)
   })
-  ipcMain.handle('redis:setTTL', async (_e, id: string, key: string, ttl: number) => {
+  ipcMain.handle('redis:setTTL', withLog('EXPIRE', async (_e, id: string, key: string, ttl: number) => {
     await redis.setKeyTTL(id, key, ttl)
-  })
-  ipcMain.handle('redis:deleteKey', async (_e, id: string, key: string) => {
+  }))
+  ipcMain.handle('redis:deleteKey', withLog('DEL', async (_e, id: string, key: string) => {
     await redis.deleteKey(id, key)
-  })
-  ipcMain.handle('redis:renameKey', async (_e, id: string, oldKey: string, newKey: string) => {
+  }))
+  ipcMain.handle('redis:renameKey', withLog('RENAME', async (_e, id: string, oldKey: string, newKey: string) => {
     await redis.renameKey(id, oldKey, newKey)
-  })
+  }))
   ipcMain.handle('redis:existsKey', async (_e, id: string, key: string) => {
     return redis.existsKey(id, key)
   })
-  ipcMain.handle('redis:batchDelete', async (_e, id: string, keys: string[]) => {
+  ipcMain.handle('redis:batchDelete', withLog('DEL batch', async (_e, id: string, keys: string[]) => {
     return redis.batchDelete(id, keys)
-  })
+  }))
   ipcMain.handle('redis:memoryUsage', async (_e, id: string, key: string) => {
     return redis.memoryUsage(id, key)
   })
@@ -140,20 +155,20 @@ export function registerIpcHandlers(): void {
   ipcMain.handle('redis:getString', async (_e, id: string, key: string) => {
     return redis.getStringValue(id, key)
   })
-  ipcMain.handle('redis:setString', async (_e, id: string, key: string, value: string) => {
+  ipcMain.handle('redis:setString', withLog('SET', async (_e, id: string, key: string, value: string) => {
     await redis.setStringValue(id, key, value)
-  })
+  }))
 
   // Redis - Hash
   ipcMain.handle('redis:hashScan', async (_e, id: string, key: string, cursor: string, count: number) => {
     return redis.getHashFields(id, key, cursor, count)
   })
-  ipcMain.handle('redis:hashSet', async (_e, id: string, key: string, field: string, value: string) => {
+  ipcMain.handle('redis:hashSet', withLog('HSET', async (_e, id: string, key: string, field: string, value: string) => {
     await redis.setHashField(id, key, field, value)
-  })
-  ipcMain.handle('redis:hashDel', async (_e, id: string, key: string, field: string) => {
+  }))
+  ipcMain.handle('redis:hashDel', withLog('HDEL', async (_e, id: string, key: string, field: string) => {
     await redis.deleteHashField(id, key, field)
-  })
+  }))
 
   // Redis - List
   ipcMain.handle('redis:listRange', async (_e, id: string, key: string, start: number, stop: number) => {
@@ -162,15 +177,15 @@ export function registerIpcHandlers(): void {
   ipcMain.handle('redis:listLength', async (_e, id: string, key: string) => {
     return redis.listLength(id, key)
   })
-  ipcMain.handle('redis:listPush', async (_e, id: string, key: string, values: string[]) => {
+  ipcMain.handle('redis:listPush', withLog('RPUSH', async (_e, id: string, key: string, values: string[]) => {
     return redis.listPush(id, key, ...values)
-  })
-  ipcMain.handle('redis:listSet', async (_e, id: string, key: string, index: number, value: string) => {
+  }))
+  ipcMain.handle('redis:listSet', withLog('LSET', async (_e, id: string, key: string, index: number, value: string) => {
     await redis.listSet(id, key, index, value)
-  })
-  ipcMain.handle('redis:listRemove', async (_e, id: string, key: string, count: number, value: string) => {
+  }))
+  ipcMain.handle('redis:listRemove', withLog('LREM', async (_e, id: string, key: string, count: number, value: string) => {
     return redis.listRemove(id, key, count, value)
-  })
+  }))
 
   // Redis - Set
   ipcMain.handle('redis:setMembers', async (_e, id: string, key: string) => {
@@ -179,12 +194,12 @@ export function registerIpcHandlers(): void {
   ipcMain.handle('redis:setSize', async (_e, id: string, key: string) => {
     return redis.setSize(id, key)
   })
-  ipcMain.handle('redis:setAdd', async (_e, id: string, key: string, members: string[]) => {
+  ipcMain.handle('redis:setAdd', withLog('SADD', async (_e, id: string, key: string, members: string[]) => {
     return redis.setAdd(id, key, ...members)
-  })
-  ipcMain.handle('redis:setRemove', async (_e, id: string, key: string, members: string[]) => {
+  }))
+  ipcMain.handle('redis:setRemove', withLog('SREM', async (_e, id: string, key: string, members: string[]) => {
     return redis.setRemove(id, key, ...members)
-  })
+  }))
 
   // Redis - Zset
   ipcMain.handle('redis:zsetRange', async (_e, id: string, key: string, start: number, stop: number, withScores: boolean) => {
@@ -193,12 +208,12 @@ export function registerIpcHandlers(): void {
   ipcMain.handle('redis:zsetSize', async (_e, id: string, key: string) => {
     return redis.zsetSize(id, key)
   })
-  ipcMain.handle('redis:zsetAdd', async (_e, id: string, key: string, score: number, member: string) => {
+  ipcMain.handle('redis:zsetAdd', withLog('ZADD', async (_e, id: string, key: string, score: number, member: string) => {
     return redis.zsetAdd(id, key, score, member)
-  })
-  ipcMain.handle('redis:zsetRemove', async (_e, id: string, key: string, members: string[]) => {
+  }))
+  ipcMain.handle('redis:zsetRemove', withLog('ZREM', async (_e, id: string, key: string, members: string[]) => {
     return redis.zsetRemove(id, key, ...members)
-  })
+  }))
 
   // Redis - Stream
   ipcMain.handle('redis:streamInfo', async (_e, id: string, key: string) => {
@@ -207,13 +222,21 @@ export function registerIpcHandlers(): void {
   ipcMain.handle('redis:streamRange', async (_e, id: string, key: string, start: string, end: string, count: number) => {
     return redis.streamRange(id, key, start, end, count)
   })
-  ipcMain.handle('redis:streamAdd', async (_e, id: string, key: string, streamId: string, fieldValues: string[]) => {
+  ipcMain.handle('redis:streamAdd', withLog('XADD', async (_e, id: string, key: string, streamId: string, fieldValues: string[]) => {
     return redis.streamAdd(id, key, streamId, fieldValues)
-  })
-  ipcMain.handle('redis:streamTrim', async (_e, id: string, key: string, maxLen: number) => {
+  }))
+  ipcMain.handle('redis:streamTrim', withLog('XTRIM', async (_e, id: string, key: string, maxLen: number) => {
     return redis.streamTrim(id, key, maxLen)
-  })
-  ipcMain.handle('redis:streamDel', async (_e, id: string, key: string, ids: string[]) => {
+  }))
+  ipcMain.handle('redis:streamDel', withLog('XDEL', async (_e, id: string, key: string, ids: string[]) => {
     return redis.streamDel(id, key, ...ids)
+  }))
+
+  // Command Log
+  ipcMain.handle('redis:getCommandLog', () => {
+    return redis.getLog()
+  })
+  ipcMain.handle('redis:clearCommandLog', () => {
+    redis.clearLog()
   })
 }
diff --git a/electron/main/redis/commandLogger.ts b/electron/main/redis/commandLogger.ts
new file mode 100644
index 0000000..fe05d2c
--- /dev/null
+++ b/electron/main/redis/commandLogger.ts
@@ -0,0 +1,49 @@
+// electron/main/redis/commandLogger.ts
+// 命令日志记录器
+
+export interface CommandEntry {
+  id: number
+  time: string
+  connection: string
+  command: string
+  duration: number
+  isWrite: boolean
+}
+
+const MAX_ENTRIES = 5000
+let nextId = 1
+const entries: CommandEntry[] = []
+
+const WRITE_COMMANDS = new Set([
+  'SET', 'DEL', 'HSET', 'HDEL', 'RPUSH', 'LPUSH', 'LSET', 'LREM',
+  'SADD', 'SREM', 'ZADD', 'ZREM', 'XADD', 'XDEL', 'XTRIM',
+  'RENAME', 'EXPIRE', 'PERSIST', 'FLUSHDB', 'SELECT',
+  'SETEX', 'INCR', 'DECR', 'INCRBY', 'DECRBY', 'APPEND',
+  'HMSET', 'HINCRBY', 'HINCRBYFLOAT',
+  'LPOP', 'RPOP', 'BLPOP', 'BRPOP',
+  'ZINCRBY', 'ZREMRANGEBYRANK', 'ZREMRANGEBYSCORE',
+  'UNLINK', 'MOVE', 'RENAMENX',
+])
+
+export function log(connection: string, command: string, duration: number): void {
+  const isWrite = WRITE_COMMANDS.has(command.split(' ')[0].toUpperCase())
+  entries.push({
+    id: nextId++,
+    time: new Date().toISOString(),
+    connection,
+    command,
+    duration,
+    isWrite,
+  })
+  if (entries.length > MAX_ENTRIES) {
+    entries.splice(0, entries.length - MAX_ENTRIES)
+  }
+}
+
+export function getLog(): CommandEntry[] {
+  return entries
+}
+
+export function clearLog(): void {
+  entries.length = 0
+}
diff --git a/electron/main/redis/index.ts b/electron/main/redis/index.ts
index bba73d7..9557b82 100644
--- a/electron/main/redis/index.ts
+++ b/electron/main/redis/index.ts
@@ -9,3 +9,4 @@ export * from './set'
 export * from './zset'
 export * from './stream'
 export * from './server'
+export * from './commandLogger'
diff --git a/electron/preload/index.d.ts b/electron/preload/index.d.ts
index 704f820..8c5f7e1 100644
--- a/electron/preload/index.d.ts
+++ b/electron/preload/index.d.ts
@@ -102,6 +102,8 @@ export interface ElectronAPI {
     existsKey: (id: string, key: string) => Promise<boolean>
     ping: (id: string) => Promise<string>
     isConnected: (id: string) => Promise<boolean>
+    getCommandLog: () => Promise<any[]>
+    clearCommandLog: () => Promise<void>
   }
 }
 
diff --git a/electron/preload/index.ts b/electron/preload/index.ts
index 271baa1..16fee0d 100644
--- a/electron/preload/index.ts
+++ b/electron/preload/index.ts
@@ -114,6 +114,11 @@ const electronAPI = {
       ipcRenderer.invoke('redis:ping', id),
     isConnected: (id: string): Promise<boolean> =>
       ipcRenderer.invoke('redis:isConnected', id),
+    // Command log
+    getCommandLog: (): Promise<any[]> =>
+      ipcRenderer.invoke('redis:getCommandLog'),
+    clearCommandLog: (): Promise<void> =>
+      ipcRenderer.invoke('redis:clearCommandLog'),
   },
 }
 
diff --git a/src/components/CommandLog.vue b/src/components/CommandLog.vue
new file mode 100644
index 0000000..8371635
--- /dev/null
+++ b/src/components/CommandLog.vue
@@ -0,0 +1,128 @@
+<script setup lang="ts">
+// src/components/CommandLog.vue
+import { ref, onMounted } from 'vue'
+import { useI18n } from '@renderer/i18n'
+
+const { t } = useI18n()
+
+interface CommandEntry {
+  id: number
+  time: string
+  connection: string
+  command: string
+  duration: number
+  isWrite: boolean
+}
+
+const entries = ref<CommandEntry[]>([])
+const onlyWrite = ref(false)
+const visible = defineModel<boolean>('visible', { default: false })
+
+const filteredEntries = () => {
+  if (onlyWrite.value) {
+    return entries.value.filter(e => e.isWrite)
+  }
+  return entries.value
+}
+
+function formatTime(iso: string): string {
+  const d = new Date(iso)
+  return d.toLocaleTimeString()
+}
+
+function formatDuration(ms: number): string {
+  if (ms < 1) return '<1ms'
+  if (ms < 1000) return ms + 'ms'
+  return (ms / 1000).toFixed(2) + 's'
+}
+
+async function refresh() {
+  try {
+    entries.value = await window.electronAPI.redis.getCommandLog()
+  } catch {
+    // ignore
+  }
+}
+
+async function clear() {
+  try {
+    await window.electronAPI.redis.clearCommandLog()
+    entries.value = []
+  } catch {
+    // ignore
+  }
+}
+
+defineExpose({ refresh })
+</script>
+
+<template>
+  <el-dialog
+    :model-value="visible"
+    :title="t('commandLog.title')"
+    width="700px"
+    top="5vh"
+    @update:model-value="visible = $event"
+    @opened="refresh"
+  >
+    <div class="cmdlog-toolbar">
+      <el-checkbox v-model="onlyWrite" size="small">{{ t('commandLog.onlyWrite') }}</el-checkbox>
+      <div class="cmdlog-actions">
+        <el-button size="small" @click="refresh">{{ t('common.refresh') }}</el-button>
+        <el-button size="small" type="danger" @click="clear">{{ t('commandLog.clear') }}</el-button>
+      </div>
+    </div>
+    <div class="cmdlog-table-wrap">
+      <el-table
+        :data="filteredEntries()"
+        size="small"
+        stripe
+        height="420"
+        highlight-current-row
+      >
+        <el-table-column prop="id" label="#" width="50" />
+        <el-table-column :label="t('commandLog.time')" width="90">
+          <template #default="{ row }">{{ formatTime(row.time) }}</template>
+        </el-table-column>
+        <el-table-column prop="command" :label="t('commandLog.command')" min-width="200" show-overflow-tooltip />
+        <el-table-column :label="t('commandLog.duration')" width="80" align="right">
+          <template #default="{ row }">
+            <span :style="{ color: row.duration > 100 ? 'var(--warning)' : 'var(--success)' }">
+              {{ formatDuration(row.duration) }}
+            </span>
+          </template>
+        </el-table-column>
+      </el-table>
+      <div v-if="entries.length === 0" class="cmdlog-empty">
+        {{ t('commandLog.empty') }}
+      </div>
+    </div>
+  </el-dialog>
+</template>
+
+<style scoped>
+.cmdlog-toolbar {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 12px;
+}
+
+.cmdlog-actions {
+  display: flex;
+  gap: 8px;
+}
+
+.cmdlog-table-wrap {
+  min-height: 200px;
+}
+
+.cmdlog-empty {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  height: 150px;
+  color: var(--text-muted);
+  font-size: 13px;
+}
+</style>
diff --git a/src/components/Sidebar.vue b/src/components/Sidebar.vue
index 7d4e366..cc55fb8 100644
--- a/src/components/Sidebar.vue
+++ b/src/components/Sidebar.vue
@@ -3,6 +3,7 @@
 import { ref } from 'vue'
 import ConnectionList from './ConnectionList.vue'
 import NewConnectionDialog from './NewConnectionDialog.vue'
+import CommandLog from './CommandLog.vue'
 import { useConnectionStore } from '@renderer/stores/connection'
 import { useKeyStore } from '@renderer/stores/key'
 import { useI18n } from '@renderer/i18n'
@@ -16,6 +17,7 @@ const { t } = useI18n()
 const dialogVisible = ref(false)
 const editingConnection = ref<ConnectionConfig | null>(null)
 const collapsed = ref(false)
+const commandLogVisible = ref(false)
 
 function handleEdit(conn: ConnectionConfig | null) {
   editingConnection.value = conn
@@ -53,6 +55,7 @@ function refreshAll() {
 useKeyboard({
   'ctrl+n': handleNew,
   'ctrl+r': refreshAll,
+  'ctrl+g': () => { commandLogVisible.value = true },
   'f5': refreshAll,
   'delete': deleteSelectedKey,
   'escape': deselectKey,
@@ -73,6 +76,7 @@ useKeyboard({
       v-model:visible="dialogVisible"
       :connection="editingConnection"
     />
+    <CommandLog v-model:visible="commandLogVisible" />
   </aside>
 </template>
 
diff --git a/src/i18n/locales/en.ts b/src/i18n/locales/en.ts
index 66a8bf5..64e5620 100644
--- a/src/i18n/locales/en.ts
+++ b/src/i18n/locales/en.ts
@@ -156,6 +156,16 @@ export default {
     sortDesc: 'Descending',
     scanned: '{n} keys scanned',
   },
+  commandLog: {
+    title: 'Command Log',
+    time: 'Time',
+    command: 'Command',
+    duration: 'Duration',
+    connection: 'Connection',
+    onlyWrite: 'Write Only',
+    clear: 'Clear',
+    empty: 'No commands recorded',
+  },
   status: {
     title: 'Status',
     database: 'Database',
diff --git a/src/i18n/locales/zh-CN.ts b/src/i18n/locales/zh-CN.ts
index 65f6d3d..5e42056 100644
--- a/src/i18n/locales/zh-CN.ts
+++ b/src/i18n/locales/zh-CN.ts
@@ -156,6 +156,16 @@ export default {
     sortDesc: '降序',
     scanned: '已扫描 {n} 个',
   },
+  commandLog: {
+    title: '命令日志',
+    time: '时间',
+    command: '命令',
+    duration: '耗时',
+    connection: '连接',
+    onlyWrite: '仅写操作',
+    clear: '清空',
+    empty: '暂无命令记录',
+  },
   status: {
     title: '状态',
     database: '数据库',