diff --git a/src/api/msg.ts b/src/api/msg.ts
index 20e0aca..215dee2 100644
--- a/src/api/msg.ts
+++ b/src/api/msg.ts
@@ -27,7 +27,9 @@ export function msgSwitch(data) {
 
 // 已读一条消息
 export function msgRead(data) {
-    return httpService.put(API.MESSAGE.READ_ONE(), {data})
+
+    // 后端需要id作为URL参数
+    return httpService.put(`${API.MESSAGE.READ_ONE()}?id=${data.id}`)
 }
 
 // 已读全部
diff --git a/src/pages/msg/index.vue b/src/pages/msg/index.vue
index 5f62d7a..afdab25 100644
--- a/src/pages/msg/index.vue
+++ b/src/pages/msg/index.vue
@@ -67,6 +67,8 @@
         refresherThreshold="50"
         :refresherTriggered="refStatus"
         @RefresherPulling="onPulling"
+        @scrolltolower="lower"
+        :lower-threshold="100"
       >
         <view class="body">
           <view v-if="selectVal === 0">
@@ -246,7 +248,7 @@ const msg_o2 = `${imgUrl}msg_o2.png`;
 const pond404 = `${imgUrl}zanwurenwu.png`;
 const selectVal = ref(0);
 // 告警列表
-const warnList = ref([]);
+const warnList = ref<any[]>([]);
 const warnParams = ref({
   pageSize: 10,
   pageNum: 1
@@ -254,7 +256,7 @@ const warnParams = ref({
 const warnTotal = ref(0);
 const warnTotalPages = ref(1);
 // 开关列表
-const switchList = ref([]);
+const switchList = ref<any[]>([]);
 const switchParams = ref({
   pageSize: 10,
   pageNum: 1
@@ -262,7 +264,7 @@ const switchParams = ref({
 const switchTotal = ref(0);
 const switchTotalPages = ref(1);
 // 充值列表
-const payList = ref([]);
+const payList = ref<any[]>([]);
 const payParams = ref({
   pageSize: 10,
   pageNum: 1
@@ -272,12 +274,22 @@ const payTotalPages = ref(1);
 const refStatus = ref(false);
 const unReadCount = ref<number>(0);
 const msgCount = ref<number>(0);
+// 使用普通变量而不是 ref，避免响应式延迟
+let isLoadingMore = false;
+// 记录当前正在加载的页码，防止重复
+let currentLoadingPage = 0;
 
 /** ----------------method start------------------------ */
+// 标记是否已经初始化
+let isInitialized = false;
+
 Taro.useDidShow(() => {
-  selectVal.value = 0;
-  // 查询设备列表
-  getWarnMsg();
+  // 只在首次显示时加载数据
+  if (!isInitialized) {
+    selectVal.value = 0;
+    getWarnMsg();
+    isInitialized = true;
+  }
 });
 // 头部组件刷新
 function resUsetInfo(e){
@@ -289,6 +301,11 @@ function changeVal(e) {
     refStatus.value = false;
   }, 200);
 
+  // 如果是同一个tab，不做任何操作（保持当前状态）
+  if (selectVal.value === e) {
+    return;
+  }
+
   selectVal.value = e;
   if (e == 0) {
     warnParams.value.pageNum = 1;
@@ -302,27 +319,30 @@ function changeVal(e) {
   }
 }
 // 查询告警消息
-function getWarnMsg() {
+function getWarnMsg(isLoadMore = false) {
  const store = useRootUserStore();
   const userId = store.getRootUserId || Taro.getStorageSync('UserId');
   const params = {
     ...warnParams.value,
     userId
   };
+  
   msgWarn(params).then((res: any) => {
     if (res.code == 200) {
-      // 数据直接在 res 上，不是 res.data
-      warnList.value = res.rows || [];
+      if (isLoadMore) {
+        const newRows = res.rows || [];
+        warnList.value = [...warnList.value, ...newRows];
+      } else {
+        warnList.value = res.rows || [];
+      }
       warnTotal.value = res.total || 0;
-      // 计算总页数
       warnTotalPages.value = Math.ceil(warnTotal.value / warnParams.value.pageSize);
-      // 统计未读数量
       unReadCount.value = warnList.value.filter(item => !item.isRead).length;
       msgCount.value = warnTotal.value;
       
       if (unReadCount.value) {
         Taro.setTabBarBadge({
-          index: 1, // tabBar的位置，从0开始计数
+          index: 1,
           text: unReadCount.value > 9 ? "9+" : String(unReadCount.value),
         });
       } else {
@@ -331,19 +351,30 @@ function getWarnMsg() {
         });
       }
     }
+  }).finally(() => {
+    // 延迟重置锁，防止立即触发下一次滚动
+    setTimeout(() => {
+      isLoadingMore = false;
+      currentLoadingPage = 0;
+    }, 500);
   });
 }
 // 查询开关消息
-function getSwitchMsg() {
+function getSwitchMsg(isLoadMore = false) {
   const store = useRootUserStore();
-    const userId = store.getRootUserId || Taro.getStorageSync('UserId');
+  const userId = store.getRootUserId || Taro.getStorageSync('UserId');
   const params = {
     ...switchParams.value,
     userId
   };
   msgSwitch(params).then((res: any) => {
     if (res.code == 200) {
-      switchList.value = res.rows || [];
+      if (isLoadMore) {
+        const newRows = res.rows || [];
+        switchList.value = [...switchList.value, ...newRows];
+      } else {
+        switchList.value = res.rows || [];
+      }
       switchTotal.value = res.total || 0;
       switchTotalPages.value = Math.ceil(switchTotal.value / switchParams.value.pageSize);
       msgCount.value = switchTotal.value;
@@ -351,7 +382,7 @@ function getSwitchMsg() {
   });
 }
 // 查询充值消息
-function getPayMsg() {
+function getPayMsg(isLoadMore = false) {
  const store = useRootUserStore();
   const userId = store.getRootUserId || Taro.getStorageSync('UserId');
   const params = {
@@ -360,7 +391,12 @@ function getPayMsg() {
   };
   msgPay(params).then((res: any) => {
     if (res.code == 200) {
-      payList.value = res.rows || [];
+      if (isLoadMore) {
+        const newRows = res.rows || [];
+        payList.value = [...payList.value, ...newRows];
+      } else {
+        payList.value = res.rows || [];
+      }
       payTotal.value = res.total || 0;
       payTotalPages.value = Math.ceil(payTotal.value / payParams.value.pageSize);
       msgCount.value = payTotal.value;
@@ -368,55 +404,46 @@ function getPayMsg() {
   });
 }
 function lower() {
+  // 防止重复加载
+  if (isLoadingMore) {
+    return;
+  }
+  
+  // 检查是否还有更多数据
+  if (selectVal.value == 0 && warnParams.value.pageNum >= warnTotalPages.value) {
+    return;
+  }
+  if (selectVal.value == 1 && switchParams.value.pageNum >= switchTotalPages.value) {
+    return;
+  }
+  if (selectVal.value == 2 && payParams.value.pageNum >= payTotalPages.value) {
+    return;
+  }
+  
+  // 计算要加载的页码
+  const nextPage = warnParams.value.pageNum + 1;
+  
+  // 检查是否正在加载同一页
+  if (currentLoadingPage === nextPage) {
+    return;
+  }
+  
+  // 设置加载状态
+  isLoadingMore = true;
+  currentLoadingPage = nextPage;
+  
+  // 更新页码
+  warnParams.value.pageNum = nextPage;
+  
   const userId = Taro.getStorageSync("UserId");
   if (selectVal.value == 0) {
-    if (warnParams.value.pageNum < warnTotalPages.value) {
-      warnParams.value.pageNum = warnParams.value.pageNum + 1;
-      const params = {
-        ...warnParams.value,
-        userId
-      };
-      msgWarn(params).then((res: any) => {
-        if (res.code == 200) {
-          const newRows = res.rows || [];
-          newRows.forEach((r) => {
-            warnList.value.push(r);
-          });
-        }
-      });
-    }
+    getWarnMsg(true);
   } else if (selectVal.value == 1) {
-    if (switchParams.value.pageNum < switchTotalPages.value) {
-      switchParams.value.pageNum = switchParams.value.pageNum + 1;
-      const params = {
-        ...switchParams.value,
-        userId
-      };
-      msgSwitch(params).then((res: any) => {
-        if (res.code == 200) {
-          const newRows = res.rows || [];
-          newRows.forEach((r) => {
-            switchList.value.push(r);
-          });
-        }
-      });
-    }
+    switchParams.value.pageNum = switchParams.value.pageNum + 1;
+    getSwitchMsg(true);
   } else if (selectVal.value == 2) {
-    if (payParams.value.pageNum < payTotalPages.value) {
-      payParams.value.pageNum = payParams.value.pageNum + 1;
-      const params = {
-        ...payParams.value,
-        userId
-      };
-      msgPay(params).then((res: any) => {
-        if (res.code == 200) {
-          const newRows = res.rows || [];
-          newRows.forEach((r) => {
-            payList.value.push(r);
-          });
-        }
-      });
-    }
+    payParams.value.pageNum = payParams.value.pageNum + 1;
+    getPayMsg(true);
   }
 }
 /** 上拉触底分页 */
@@ -564,6 +591,7 @@ function getWarnCode(warnCode) {
   }
   .body {
     padding: 15px;
+    min-height: 81vh; // 确保内容高度超过容器，支持滚动
 
     .title {
       font-size: 32px;