diff --git a/client/src/pages/profile/profile.vue b/client/src/pages/profile/profile.vue
index b397441..1c679a2 100644
--- a/client/src/pages/profile/profile.vue
+++ b/client/src/pages/profile/profile.vue
@@ -15,8 +15,8 @@
           <AppIcon name="planet-white" :size="26" />
         </view>
       </view>
-      <view class="profile-main">
-        <text class="profile-name">{{ userStore.userInfo?.nickName || '探索者' }}</text>
+      <view class="profile-main" @click="editNickname">
+        <text class="profile-name">{{ userStore.userInfo?.nickName || '探索者' }}<text v-if="userStore.isLoggedIn" class="nick-edit"> ✏️</text></text>
         <text class="profile-sub">{{ profileSubText }}</text>
       </view>
       <view class="streak-chip" v-if="stats && stats.streak > 0">
@@ -229,6 +229,37 @@ function dimPercent(dimId) {
   return Math.round(((stats.value?.litByDim?.[dimId] || 0) / total) * 100)
 }
 
+// 修改昵称（点击我的页昵称）
+function editNickname() {
+  if (!userStore.isLoggedIn) {
+    uni.showModal({
+      title: '请先登录',
+      content: '登录后即可修改昵称',
+      confirmText: '去登录',
+      showCancel: false,
+      success: () => uni.navigateTo({ url: '/pages/login/login' }),
+    })
+    return
+  }
+  uni.showModal({
+    title: '修改昵称',
+    editable: true,
+    placeholderText: '请输入新昵称（最多20字）',
+    success: async (m) => {
+      if (!m.confirm) return
+      const nickName = String(m.content || '').trim()
+      if (!nickName) return uni.showToast({ title: '昵称不能为空', icon: 'none' })
+      try {
+        await request('PUT', '/api/auth/nickname', { nickName }, userStore.token)
+        await userStore.fetchMe()
+        uni.showToast({ title: '昵称已更新', icon: 'success' })
+      } catch (e) {
+        uni.showToast({ title: e.message || '修改失败', icon: 'none' })
+      }
+    },
+  })
+}
+
 function goDim(id) {
   uni.navigateTo({ url: `/pages/dimension/dimension?id=${id}` })
 }
@@ -325,6 +356,7 @@ onShareTimeline(() => ({
   color: var(--text-primary);
   margin-bottom: 4px;
 }
+.nick-edit { font-size: 14px; opacity: 0.7; }
 .profile-sub {
   display: block;
   font-size: 12px;
diff --git a/server/src/routes/auth.js b/server/src/routes/auth.js
index d878ad8..a324943 100755
--- a/server/src/routes/auth.js
+++ b/server/src/routes/auth.js
@@ -539,6 +539,29 @@ router.get('/me', async (req, res) => {
   }
 })
 
+/**
+ * 修改昵称
+ * PUT /api/auth/nickname
+ */
+router.put('/nickname', async (req, res) => {
+  try {
+    const token = req.header('Authorization')?.replace('Bearer ', '')
+    if (!token) return ApiResponse.unauthorized(res)
+    const decoded = jwt.verify(token, process.env.JWT_SECRET)
+    const nickName = String(req.body?.nickName || '').trim().slice(0, 20)
+    if (!nickName) return ApiResponse.error(res, '昵称不能为空', 400)
+    const user = await User.findByIdAndUpdate(decoded.userId, { nickName }, { new: true })
+    if (!user) return ApiResponse.notFound(res, '用户不存在')
+    return ApiResponse.success(res, { nickName: user.nickName }, '昵称已更新')
+  } catch (error) {
+    if (error.name === 'JsonWebTokenError' || error.name === 'TokenExpiredError') {
+      return ApiResponse.unauthorized(res, '认证令牌无效或已过期')
+    }
+    logger.error('修改昵称失败:', error)
+    return ApiResponse.serverError(res, error.message)
+  }
+})
+
 /**
  * WebView Token 交换接口
  * POST /api/auth/webview-token