diff --git a/ROADMAP.md b/ROADMAP.md
index c345ce8..618c961 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -13,7 +13,7 @@
 
 ## P1 — 核心功能缺失
 
-- [ ] **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
+- [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
 - [ ] **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
diff --git a/src/components/MainArea.vue b/src/components/MainArea.vue
index d88202d..3c395ab 100644
--- a/src/components/MainArea.vue
+++ b/src/components/MainArea.vue
@@ -7,6 +7,7 @@ import StatusView from './StatusView.vue'
 import KeyBrowser from './KeyBrowser.vue'
 import CliView from './CliView.vue'
 import SlowLogView from './SlowLogView.vue'
+import MemoryAnalysis from './MemoryAnalysis.vue'
 import SettingsView from './SettingsView.vue'
 
 const connStore = useConnectionStore()
@@ -15,7 +16,7 @@ const { t } = useI18n()
 const props = defineProps<{ showSettings: boolean }>()
 const emit = defineEmits<{ 'update:showSettings': [v: boolean] }>()
 
-type Tab = 'status' | 'keys' | 'cli' | 'slowlog'
+type Tab = 'status' | 'keys' | 'cli' | 'slowlog' | 'memory'
 const activeTab = ref<Tab>('status')
 
 watch(
@@ -63,6 +64,14 @@ watch(
         <el-icon><Clock /></el-icon>
         {{ t('slowlog.title') }}
       </button>
+      <button
+        class="tab-item"
+        :class="{ active: activeTab === 'memory' }"
+        @click="activeTab = 'memory'"
+      >
+        <el-icon><Odometer /></el-icon>
+        {{ t('memory.title') }}
+      </button>
     </div>
     <div class="tab-content">
       <template v-if="connStore.isConnected">
@@ -70,6 +79,7 @@ watch(
         <KeyBrowser v-else-if="activeTab === 'keys'" />
         <CliView v-else-if="activeTab === 'cli'" />
         <SlowLogView v-else-if="activeTab === 'slowlog'" />
+        <MemoryAnalysis v-else-if="activeTab === 'memory'" />
       </template>
       <div v-if="!connStore.isConnected" class="no-connection">
         <div class="placeholder-icon">JRD</div>
diff --git a/src/components/MemoryAnalysis.vue b/src/components/MemoryAnalysis.vue
new file mode 100644
index 0000000..f7b0c6e
--- /dev/null
+++ b/src/components/MemoryAnalysis.vue
@@ -0,0 +1,267 @@
+<script setup lang="ts">
+// src/components/MemoryAnalysis.vue
+import { ref, computed, onUnmounted } from 'vue'
+import { useConnectionStore } from '@renderer/stores/connection'
+import { useI18n } from '@renderer/i18n'
+
+const connStore = useConnectionStore()
+const { t } = useI18n()
+
+interface KeyEntry {
+  key: string
+  size: number
+  type: string
+}
+
+const entries = ref<KeyEntry[]>([])
+const scanning = ref(false)
+const paused = ref(false)
+const totalSize = ref(0)
+const scannedCount = ref(0)
+const minSizeKB = ref(0)
+const sortAsc = ref(false)
+const scanAbort = ref<AbortController | null>(null)
+
+const sortedEntries = computed(() => {
+  const filtered = minSizeKB.value > 0
+    ? entries.value.filter(e => e.size >= minSizeKB.value * 1024)
+    : entries.value
+  return [...filtered].sort((a, b) => sortAsc.value ? a.size - b.size : b.size - a.size)
+})
+
+const totalFiltered = computed(() => sortedEntries.value.reduce((s, e) => s + e.size, 0))
+
+function formatSize(bytes: number): string {
+  if (bytes === 0) return '0 B'
+  const units = ['B', 'KB', 'MB', 'GB']
+  const i = Math.floor(Math.log(bytes) / Math.log(1024))
+  return (bytes / Math.pow(1024, Math.floor(i))).toFixed(i > 0 ? 1 : 0) + ' ' + units[Math.min(i, units.length - 1)]
+}
+
+function formatType(type: string): string {
+  const map: Record<string, string> = {
+    string: t('types.string'), hash: t('types.hash'),
+    list: t('types.list'), set: t('types.set'),
+    zset: t('types.zset'), stream: t('types.stream'),
+  }
+  return map[type] || type
+}
+
+async function sleep(ms: number) {
+  return new Promise(r => setTimeout(r, ms))
+}
+
+async function startScan() {
+  if (!connStore.activeId) return
+  entries.value = []
+  totalSize.value = 0
+  scannedCount.value = 0
+  scanning.value = true
+  paused.value = false
+  const controller = new AbortController()
+  scanAbort.value = controller
+
+  try {
+    let cursor = '0'
+    do {
+      if (controller.signal.aborted) break
+      while (paused.value) {
+        await sleep(200)
+        if (controller.signal.aborted) break
+      }
+      const result = await window.electronAPI.redis.scanKeys(
+        connStore.activeId, cursor, '*', 100
+      )
+      cursor = result.cursor
+
+      for (const key of result.keys) {
+        if (controller.signal.aborted) break
+        try {
+          const [type, size] = await Promise.all([
+            window.electronAPI.redis.getKeyType(connStore.activeId, key),
+            window.electronAPI.redis.memoryUsage(connStore.activeId, key),
+          ])
+          const sz = size ?? 0
+          entries.value.push({ key, size: sz, type })
+          totalSize.value += sz
+          scannedCount.value++
+        } catch {
+          // skip keys that error
+        }
+        await sleep(10) // throttle to avoid overwhelming Redis
+      }
+    } while (cursor !== '0' && !controller.signal.aborted)
+  } catch (err: any) {
+    console.error('Scan error:', err)
+  } finally {
+    scanning.value = false
+    paused.value = false
+    scanAbort.value = null
+  }
+}
+
+function togglePause() {
+  paused.value = !paused.value
+}
+
+function stopScan() {
+  scanAbort.value?.abort()
+  scanning.value = false
+  paused.value = false
+}
+
+onUnmounted(() => {
+  scanAbort.value?.abort()
+})
+</script>
+
+<template>
+  <div class="memory-analysis">
+    <div class="ma-header">
+      <h2>{{ t('memory.title') }}</h2>
+      <div class="ma-toolbar">
+        <template v-if="!scanning">
+          <el-button type="primary" size="small" @click="startScan">
+            {{ t('memory.scan') }}
+          </el-button>
+        </template>
+        <template v-else>
+          <el-button size="small" @click="togglePause">
+            {{ paused ? t('memory.resume') : t('memory.pause') }}
+          </el-button>
+          <el-button size="small" type="danger" @click="stopScan">
+            {{ t('memory.stop') }}
+          </el-button>
+          <span class="scan-status" :class="{ paused }">
+            {{ paused ? t('memory.paused') : t('memory.scanning') }}
+          </span>
+        </template>
+      </div>
+    </div>
+
+    <div class="ma-summary">
+      <div class="ma-stat">
+        <span class="ma-stat-label">{{ t('memory.scanned', { n: scannedCount.toLocaleString() }) }}</span>
+      </div>
+      <div class="ma-stat">
+        <span class="ma-stat-label">{{ t('memory.totalSize') }}: {{ formatSize(totalFiltered) }}</span>
+      </div>
+      <div class="ma-filters">
+        <el-input-number
+          v-model="minSizeKB"
+          :min="0"
+          :max="10240"
+          :step="1"
+          size="small"
+          controls-position="right"
+          :placeholder="t('memory.minSize')"
+          style="width:140px"
+        />
+        <el-button size="small" @click="sortAsc = !sortAsc">
+          {{ sortAsc ? t('memory.sortAsc') : t('memory.sortDesc') }}
+        </el-button>
+      </div>
+    </div>
+
+    <div class="ma-table-wrap">
+      <el-table
+        :data="sortedEntries"
+        size="small"
+        stripe
+        height="100%"
+        highlight-current-row
+      >
+        <el-table-column prop="key" :label="t('memory.key')" min-width="200" show-overflow-tooltip />
+        <el-table-column prop="type" :label="t('memory.type')" width="100">
+          <template #default="{ row }">{{ formatType(row.type) }}</template>
+        </el-table-column>
+        <el-table-column prop="size" :label="t('memory.size')" width="120" sortable>
+          <template #default="{ row }">{{ formatSize(row.size) }}</template>
+        </el-table-column>
+      </el-table>
+      <div v-if="!scanning && entries.length === 0" class="ma-empty">
+        {{ t('memory.noData') }}
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.memory-analysis {
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+  padding: 16px;
+}
+
+.ma-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 12px;
+  flex-shrink: 0;
+}
+
+.ma-header h2 {
+  font-size: 16px;
+  font-weight: 700;
+  color: var(--text-primary);
+}
+
+.ma-toolbar {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.scan-status {
+  font-size: 12px;
+  color: var(--accent-light);
+  animation: pulse 1.5s infinite;
+}
+
+.scan-status.paused {
+  color: var(--warning);
+  animation: none;
+}
+
+@keyframes pulse {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.5; }
+}
+
+.ma-summary {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+  margin-bottom: 12px;
+  flex-shrink: 0;
+  flex-wrap: wrap;
+}
+
+.ma-stat-label {
+  font-size: 12px;
+  color: var(--text-secondary);
+}
+
+.ma-filters {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin-left: auto;
+}
+
+.ma-table-wrap {
+  flex: 1;
+  overflow: hidden;
+}
+
+.ma-empty {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  height: 200px;
+  color: var(--text-muted);
+  font-size: 13px;
+}
+</style>
diff --git a/src/i18n/locales/en.ts b/src/i18n/locales/en.ts
index 078e181..66a8bf5 100644
--- a/src/i18n/locales/en.ts
+++ b/src/i18n/locales/en.ts
@@ -138,6 +138,24 @@ export default {
     duration: 'Duration',
     command: 'Command',
   },
+  memory: {
+    title: 'Memory Analysis',
+    scan: 'Start Scan',
+    pause: 'Pause',
+    resume: 'Resume',
+    stop: 'Stop',
+    scanning: 'Scanning...',
+    paused: 'Paused',
+    noData: 'No data',
+    key: 'Key',
+    size: 'Size',
+    type: 'Type',
+    totalSize: 'Total Size',
+    minSize: 'Min Size (KB)',
+    sortAsc: 'Ascending',
+    sortDesc: 'Descending',
+    scanned: '{n} keys scanned',
+  },
   status: {
     title: 'Status',
     database: 'Database',
diff --git a/src/i18n/locales/zh-CN.ts b/src/i18n/locales/zh-CN.ts
index abfb912..65f6d3d 100644
--- a/src/i18n/locales/zh-CN.ts
+++ b/src/i18n/locales/zh-CN.ts
@@ -138,6 +138,24 @@ export default {
     duration: '耗时',
     command: '命令',
   },
+  memory: {
+    title: '内存分析',
+    scan: '开始扫描',
+    pause: '暂停',
+    resume: '继续',
+    stop: '停止',
+    scanning: '扫描中...',
+    paused: '已暂停',
+    noData: '暂无数据',
+    key: '键名',
+    size: '大小',
+    type: '类型',
+    totalSize: '总大小',
+    minSize: '最小大小 (KB)',
+    sortAsc: '升序',
+    sortDesc: '降序',
+    scanned: '已扫描 {n} 个',
+  },
   status: {
     title: '状态',
     database: '数据库',