diff --git a/api/topic.js b/api/topic.js
index ca07c7e..38c9889 100644
--- a/api/topic.js
+++ b/api/topic.js
@@ -13,4 +13,11 @@ export const fetchTopicCategories = async (data) => {
     url: "/api/rating/topic/category/list",
     method: "GET",
   });
-};
\ No newline at end of file
+};
+
+export const fetchTopicList = async (categoryId, page = 1) => {
+  return request({
+    url: `/api/rating/topic/list/${categoryId}?page=${page}`,
+    method: "GET",
+  });
+};
diff --git a/pages/index/index.vue b/pages/index/index.vue
index 8daddf2..cb54ddc 100644
--- a/pages/index/index.vue
+++ b/pages/index/index.vue
@@ -20,13 +20,13 @@
         <view class="tabs-wrapper">
           <view 
             class="tab-item" 
-            :class="{ active: currentCategory === index }"
-            v-for="(category, index) in categories" 
-            :key="index"
-            @tap="switchCategory(index)"
+            :class="{ active: currentCategoryId === category.id }"
+            v-for="category in categories" 
+            :key="category.id"
+            @tap="switchCategory(category.id)"
           >
-            <text class="tab-text">{{ category.name }}</text>
-            <view class="tab-line" v-if="currentCategory === index"></view>
+            <text class="tab-text">{{ category.title }}</text>
+            <view class="tab-line" v-if="currentCategoryId === category.id"></view>
           </view>
         </view>
       </scroll-view>
@@ -109,6 +109,7 @@ import {
 } from "@dcloudio/uni-app";
 import { useUserStore } from "@/stores/user";
 import { getShareReward } from "@/api/system";
+import { fetchTopicList, fetchTopicCategories } from "@/api/topic";
 import { getShareToken, saveViewRequest } from "@/utils/common.js";
 import LoginPopup from "@/components/LoginPopup/LoginPopup.vue";
 import adManager from "@/utils/adManager.js";
@@ -119,36 +120,68 @@ const userInfo = computed(() => userStore?.userInfo || {});
 
 const loading = ref(false);
 const hasMore = ref(true);
-const currentCategory = ref(0);
+const currentCategoryId = ref('');
+const categories = ref([]);
+const currentPage = ref(1);
 
-const categories = ref([
-  { id: 0, name: '全部' },
-  { id: 1, name: '历史' },
-  { id: 2, name: '皇帝' },
-  { id: 3, name: '数码' },
-  { id: 4, name: '手机' },
-  { id: 5, name: '城市' },
-  { id: 6, name: '生活' },
-]);
+const loadCategories = async () => {
+  try {
+    const res = await fetchTopicCategories();
+    // 提取真实数据数组
+    const list = res?.data?.list || res?.list || res || [];
+    
+    // 增加一个“全部”的默认选项，id 置空
+    categories.value = [{ id: '', title: '全部' }, ...list];
+    
+    // 初始化选中的ID为“全部”
+    if (!currentCategoryId.value && categories.value.length > 0) {
+      currentCategoryId.value = categories.value[0].id;
+    }
+    
+    // 加载初始列表
+    loadTopicList(currentCategoryId.value, currentPage.value);
+  } catch (error) {
+    console.error("获取分类失败:", error);
+    // 兜底数据
+    categories.value = [
+      { id: '', title: '全部' },
+      { id: 1, title: '历史' },
+      { id: 2, title: '数码' },
+    ];
+    // 使用兜底也尝试加载一次
+    loadTopicList(currentCategoryId.value, currentPage.value);
+  }
+};
 
-const switchCategory = (index) => {
-  if (currentCategory.value === index) return;
-  currentCategory.value = index;
-  // 切换分类时重新加载数据
-  topicList.value = [];
-  loading.value = true;
-  hasMore.value = true;
-  setTimeout(() => {
-    // 模拟根据分类筛选数据
-    const filteredData = mockData.filter(item => {
-      if (index === 0) return true;
-      const categoryName = categories.value[index].name;
-      return item.tags.includes(categoryName);
-    });
-    topicList.value = [...filteredData];
+const loadTopicList = async (categoryId, page = 1) => {
+  if (page === 1) {
+    topicList.value = [];
+  }
+  try {
+    loading.value = true;
+    const res = await fetchTopicList(categoryId, page);
+    // 提取真实数据数组
+    const list =  res?.list || [];
+    
+    // 合并数据
+    topicList.value = [...topicList.value, ...list];
+    hasMore.value = list.length >= 5;
+  } catch (error) {
+    console.error("获取主题列表失败:", error);
+    hasMore.value = false;
+  } finally {
     loading.value = false;
-    hasMore.value = filteredData.length >= 10 ? true : false;
-  }, 500);
+  }
+};
+
+const switchCategory = (categoryId) => {
+  if (currentCategoryId.value === categoryId) return;
+  currentCategoryId.value = categoryId;
+  
+  // 切换分类时重新加载数据
+  currentPage.value = 1;
+  hasMore.value = true;
+  loadTopicList(categoryId, currentPage.value);
 };
 
 const mockData = [
@@ -213,7 +246,7 @@ const initData = () => {
   if (adManager.isAdShowing) return; // 防止广告页返回时立即重新渲染引发 insertTextView:fail
 };
 
-onLoad((options) => {
+onLoad(async (options) => {
   uni.$trackRecord({
     eventName: "index_page_visit",
     eventType: `visit`,
@@ -221,6 +254,8 @@ onLoad((options) => {
   if (options.shareToken) {
     saveViewRequest(options.shareToken, "index");
   }
+  await loadCategories(); // 初始化时加载分类
+  await loadTopicList(currentCategoryId.value); // 初始化时加载主题列表
   initData();
 });
 
@@ -236,26 +271,18 @@ const handleLoginSuccess = () => {
 };
 
 // 下拉刷新
-onPullDownRefresh(() => {
-  setTimeout(() => {
-    topicList.value = [...mockData];
-    hasMore.value = true;
-    uni.stopPullDownRefresh();
-  }, 1000);
+onPullDownRefresh(async () => {
+  currentPage.value = 1;
+  hasMore.value = true;
+  await loadTopicList(currentCategoryId.value, currentPage.value);
+  uni.stopPullDownRefresh();
 });
 
 // 上拉加载更多
 onReachBottom(() => {
   if (!hasMore.value || loading.value) return;
-  loading.value = true;
-  setTimeout(() => {
-    const newData = mockData.map(item => ({ ...item, id: item.id + topicList.value.length }));
-    topicList.value.push(...newData);
-    loading.value = false;
-    if (topicList.value.length >= 10) {
-      hasMore.value = false;
-    }
-  }, 1000);
+  currentPage.value += 1;
+  loadTopicList(currentCategoryId.value, currentPage.value);
 });
 
 onShareAppMessage(async () => {