diff --git a/backend/pb_migrations/1776938195_updated_games_cover_to_file.js b/backend/pb_migrations/1776938195_updated_games_cover_to_file.js
new file mode 100644
index 0000000..a7276c1
--- /dev/null
+++ b/backend/pb_migrations/1776938195_updated_games_cover_to_file.js
@@ -0,0 +1,51 @@
+/// <reference path="../pb_data/types.d.ts" />
+migrate((db) => {
+  const dao = new Dao(db)
+  const collection = dao.findCollectionByNameOrId("x5adjlc0txf16r8")
+
+  // remove old url cover field
+  collection.schema.removeField("cover_field")
+
+  // add new file cover field
+  collection.schema.addField(new SchemaField({
+    "system": false,
+    "id": "cover_file",
+    "name": "cover",
+    "type": "file",
+    "required": false,
+    "presentable": false,
+    "unique": false,
+    "options": {
+      "maxSelect": 1,
+      "maxSize": 5242880,
+      "mimeTypes": ["image/jpeg","image/png","image/gif","image/webp","image/svg+xml"],
+      "thumbs": null,
+      "protected": false
+    }
+  }))
+
+  return dao.saveCollection(collection)
+}, (db) => {
+  const dao = new Dao(db)
+  const collection = dao.findCollectionByNameOrId("x5adjlc0txf16r8")
+
+  // remove file cover field
+  collection.schema.removeField("cover_file")
+
+  // restore url cover field
+  collection.schema.addField(new SchemaField({
+    "system": false,
+    "id": "cover_field",
+    "name": "cover",
+    "type": "url",
+    "required": false,
+    "presentable": false,
+    "unique": false,
+    "options": {
+      "exceptDomains": null,
+      "onlyDomains": null
+    }
+  }))
+
+  return dao.saveCollection(collection)
+})
diff --git a/frontend/src/api/games.ts b/frontend/src/api/games.ts
index 8f49f30..9997810 100644
--- a/frontend/src/api/games.ts
+++ b/frontend/src/api/games.ts
@@ -1,6 +1,12 @@
 import pb from './pocketbase'
 import type { Game, GamePlatform, GameComment } from '@/types'
 
+// 生成游戏封面 URL
+export function getGameCoverUrl(game: Game, thumb?: string): string {
+  if (!game.cover) return ''
+  return pb.files.getUrl(game, game.cover, thumb ? { thumb } : undefined) as string
+}
+
 // 获取群组的游戏列表
 export async function getGroupGames(groupId: string, options?: {
   page?: number
@@ -26,15 +32,19 @@ export async function addGame(groupId: string, data: {
   name: string
   platform?: GamePlatform
   tags?: string[]
-  cover?: string
+  coverFile?: File
 }) {
   const user = pb.authStore.model
-  return pb.collection('games').create({
-    ...data,
-    group: groupId,
-    addedBy: user?.id,
-    popularCount: 0
-  }, { $autoCancel: false })
+  const formData = new FormData()
+  formData.append('name', data.name)
+  formData.append('group', groupId)
+  formData.append('addedBy', user?.id || '')
+  formData.append('popularCount', '0')
+  if (data.platform) formData.append('platform', data.platform)
+  if (data.tags && data.tags.length > 0) formData.append('tags', JSON.stringify(data.tags))
+  if (data.coverFile) formData.append('cover', data.coverFile)
+
+  return pb.collection('games').create(formData, { $autoCancel: false })
 }
 
 // 删除游戏
@@ -42,12 +52,11 @@ export async function deleteGame(gameId: string) {
   return pb.collection('games').delete(gameId, { $autoCancel: false })
 }
 
-// 导入游戏（批量添加）
+// 导入游戏（批量添加，无封面文件）
 export async function importGames(groupId: string, games: Array<{
   name: string
   platform?: GamePlatform
   tags?: string[]
-  cover?: string
 }>) {
   const results = []
   for (const game of games) {
diff --git a/frontend/src/components/game/AddGameDialog.vue b/frontend/src/components/game/AddGameDialog.vue
index de98e91..4b3588c 100644
--- a/frontend/src/components/game/AddGameDialog.vue
+++ b/frontend/src/components/game/AddGameDialog.vue
@@ -4,6 +4,8 @@ import { addGame } from '@/api/games'
 import type { GamePlatform } from '@/types'
 import { ElMessage } from 'element-plus'
 import { getAllPlatforms } from '@/api/games'
+import { Plus } from '@element-plus/icons-vue'
+import type { UploadFile } from 'element-plus'
 
 const props = defineProps<{
   modelValue: boolean
@@ -23,10 +25,23 @@ const visible = computed({
 const name = ref('')
 const platform = ref<GamePlatform | ''>('')
 const tagsInput = ref('')
-const cover = ref('')
+const coverFile = ref<File | null>(null)
+const coverPreview = ref('')
 const loading = ref(false)
 const platforms = getAllPlatforms()
 
+function handleFileChange(uploadFile: UploadFile) {
+  if (uploadFile.raw) {
+    coverFile.value = uploadFile.raw
+    coverPreview.value = URL.createObjectURL(uploadFile.raw)
+  }
+}
+
+function handleFileRemove() {
+  coverFile.value = null
+  coverPreview.value = ''
+}
+
 async function handleSubmit() {
   if (!name.value.trim()) {
     ElMessage.warning('请输入游戏名称')
@@ -39,13 +54,14 @@ async function handleSubmit() {
       name: name.value.trim(),
       platform: platform.value || undefined,
       tags: tags.length > 0 ? tags : undefined,
-      cover: cover.value.trim() || undefined
+      coverFile: coverFile.value || undefined
     })
     ElMessage.success('添加成功')
     name.value = ''
     platform.value = ''
     tagsInput.value = ''
-    cover.value = ''
+    coverFile.value = null
+    coverPreview.value = ''
     emit('created')
     visible.value = false
   } catch (error: any) {
@@ -74,8 +90,23 @@ async function handleSubmit() {
         <el-input v-model="tagsInput" placeholder="逗号分隔，如: MOBA,竞技,5v5" />
       </div>
       <div class="field">
-        <label>封面图 URL</label>
-        <el-input v-model="cover" placeholder="https://example.com/cover.jpg" />
+        <label>封面图</label>
+        <el-upload
+          :auto-upload="false"
+          :limit="1"
+          accept="image/*"
+          :on-change="handleFileChange"
+          :on-remove="handleFileRemove"
+          drag
+        >
+          <div v-if="coverPreview" class="cover-preview">
+            <img :src="coverPreview" alt="封面预览" />
+          </div>
+          <div v-else class="upload-placeholder">
+            <el-icon :size="28"><Plus /></el-icon>
+            <span>点击或拖拽上传封面</span>
+          </div>
+        </el-upload>
       </div>
     </div>
     <template #footer>
@@ -89,4 +120,19 @@ async function handleSubmit() {
 .form-fields { display: flex; flex-direction: column; gap: 18px; }
 .field { display: flex; flex-direction: column; gap: 6px; }
 .field label { font-size: 13px; font-weight: 500; color: var(--gg-text-secondary); }
+.cover-preview img {
+  width: 100%;
+  max-height: 200px;
+  object-fit: contain;
+  border-radius: 6px;
+}
+.upload-placeholder {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 8px;
+  padding: 20px;
+  color: var(--gg-text-muted);
+  font-size: 13px;
+}
 </style>
diff --git a/frontend/src/components/game/GameDetailDialog.vue b/frontend/src/components/game/GameDetailDialog.vue
index 66bfff6..2d8a009 100644
--- a/frontend/src/components/game/GameDetailDialog.vue
+++ b/frontend/src/components/game/GameDetailDialog.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
 import { computed, ref, onMounted } from 'vue'
 import type { Game } from '@/types'
-import { toggleFavorite, isFavorite, deleteGame } from '@/api/games'
+import { toggleFavorite, isFavorite, deleteGame, getGameCoverUrl } from '@/api/games'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import { TrendCharts, StarFilled, Star, Delete } from '@element-plus/icons-vue'
 import GameComments from './GameComments.vue'
@@ -62,7 +62,7 @@ function handleCreateTeam() {
     <template v-if="game">
       <div class="game-detail">
         <div class="detail-cover-wrap">
-          <img :src="game.cover || '/game-placeholder.svg'" :alt="game.name" class="detail-cover" />
+          <img :src="getGameCoverUrl(game) || '/game-placeholder.svg'" :alt="game.name" class="detail-cover" />
         </div>
 
         <h2 class="detail-name">{{ game.name }}</h2>
diff --git a/frontend/src/components/team/GameSelectDialog.vue b/frontend/src/components/team/GameSelectDialog.vue
index d1fe2e8..68e7b79 100644
--- a/frontend/src/components/team/GameSelectDialog.vue
+++ b/frontend/src/components/team/GameSelectDialog.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { ref, computed, watch } from 'vue'
-import { searchGames } from '@/api/games'
+import { searchGames, getGameCoverUrl } from '@/api/games'
 import type { Game } from '@/types'
 
 const props = defineProps<{
@@ -82,7 +82,7 @@ function confirmCustomGame() {
           @click="selectGame(game)"
         >
           <img
-            :src="game.cover || '/game-placeholder.svg'"
+            :src="getGameCoverUrl(game) || '/game-placeholder.svg'"
             :alt="game.name"
             class="game-cover"
           />
diff --git a/frontend/src/views/Changelog.vue b/frontend/src/views/Changelog.vue
index ccb05d7..84fc54b 100644
--- a/frontend/src/views/Changelog.vue
+++ b/frontend/src/views/Changelog.vue
@@ -31,7 +31,8 @@ const logs = ref<LogEntry[]>([
       { type: 'fix', text: '修复活动展开详情后未订阅评论和 RSVP 实时更新' },
       { type: 'fix', text: '修复活动相对时间未使用 status 字段判断状态的问题' },
       { type: 'refactor', text: '移除顶部 Header 和首页欢迎条中重复的"创建群组""加入群组"按钮' },
-      { type: 'refactor', text: '小队邀请链接改用 API 函数替代原始 PocketBase 调用' },
+      { type: 'feat', text: '游戏封面支持本地上传图片，无需外部图床，添加游戏时拖拽或点击选择文件即可' },
+      { type: 'fix', text: '修复非群主成员无法看到群组内游戏的问题（PB listRule 语法修正）' },
     ]
   },
   {
diff --git a/frontend/src/views/GamesLibrary.vue b/frontend/src/views/GamesLibrary.vue
index b23b1c5..28bc6eb 100644
--- a/frontend/src/views/GamesLibrary.vue
+++ b/frontend/src/views/GamesLibrary.vue
@@ -2,7 +2,7 @@
 <script setup lang="ts">
 import { ref, onMounted, computed, watch } from 'vue'
 import { useGroupStore } from '@/stores/group'
-import { getGroupGames, deleteGame, exportGames, getAllPlatforms } from '@/api/games'
+import { getGroupGames, deleteGame, exportGames, getAllPlatforms, getGameCoverUrl } from '@/api/games'
 import type { Game, GamePlatform } from '@/types'
 import GameDetailDialog from '@/components/game/GameDetailDialog.vue'
 import AddGameDialog from '@/components/game/AddGameDialog.vue'
@@ -171,7 +171,7 @@ async function handleImportComplete() {
 
       <div v-else class="games-grid">
         <div v-for="game in games" :key="game.id" class="game-card" @click="openGameDetail(game)">
-          <img :src="game.cover || '/game-placeholder.svg'" :alt="game.name" class="game-cover" />
+          <img :src="getGameCoverUrl(game) || '/game-placeholder.svg'" :alt="game.name" class="game-cover" />
           <div class="game-info">
             <h3 class="game-name">{{ game.name }}</h3>
             <p class="game-platform">{{ game.platform }}</p>
diff --git a/frontend/src/views/Home.vue b/frontend/src/views/Home.vue
index 4379a7e..1420c4e 100644
--- a/frontend/src/views/Home.vue
+++ b/frontend/src/views/Home.vue
@@ -5,7 +5,7 @@ import { useRouter } from 'vue-router'
 import { useGroupStore } from '@/stores/group'
 import { useUserStore } from '@/stores/user'
 import { useTeamStore } from '@/stores/team'
-import { getPopularGames } from '@/api/games'
+import { getPopularGames, getGameCoverUrl } from '@/api/games'
 import GameDetailDialog from '@/components/game/GameDetailDialog.vue'
 import { UserStatusMap } from '@/types'
 import type { Game } from '@/types'
@@ -160,7 +160,7 @@ function openGameDetail(game: Game) {
         >
           <div class="game-cover-wrap">
             <img
-              :src="game.cover || '/game-placeholder.svg'"
+              :src="getGameCoverUrl(game) || '/game-placeholder.svg'"
               :alt="game.name"
               class="game-cover"
             />