diff --git a/Logic/chat.js b/Logic/chat.js
index 6ddc70e1d27b7abdd75a16093585a834dd926c2b..bfa902ff4787ef45c02a13d1fc0a5407865d2414 100644
--- a/Logic/chat.js
+++ b/Logic/chat.js
@@ -93,6 +93,6 @@ function sendMessage() {
 window.onload = function () {
     fetchOnlineUsers();
     fetchMessages();
-    setInterval(fetchOnlineUsers, 5000); // 每5秒刷新在线用户
-    setInterval(fetchMessages, 1000); // 每1秒刷新消息
+    setInterval(fetchOnlineUsers, 30000); // 每30秒刷新在线用户
+    setInterval(fetchMessages, 3000); // 每3秒刷新消息
 };