diff --git a/templates/index.html b/templates/index.html
index 5c18947..56259fc 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -206,10 +206,11 @@
             }
         }
         
-        // 切换Agent
-        function switchAgent() {
+        // 切换Agent - 自动创建新对话
+        async function switchAgent() {
             const newAgentId = document.getElementById('agentSelect').value;
-            if (newAgentId && newAgentId !== currentAgentId) {
+            if (newAgentId && parseInt(newAgentId) !== currentAgentId) {
+                const oldAgentId = currentAgentId;
                 currentAgentId = parseInt(newAgentId);
                 console.log('切换Agent:', currentAgentId);
                 
@@ -221,6 +222,9 @@
                     }));
                 }
                 
+                // 自动创建新对话
+                await createNewConversation();
+                
                 // 显示切换提示
                 const agent = agents.find(a => a.id === currentAgentId);
                 if (agent) {
@@ -232,19 +236,14 @@
         // 显示Agent切换提示
         function showAgentSwitchNotice(agentName) {
             const container = document.getElementById('messagesContainer');
-            const notice = document.createElement('div');
-            notice.className = 'message assistant';
-            notice.innerHTML = `
-                <div class="message-avatar">🔄</div>
-                <div class="message-content" style="color:#667eea;font-size:14px;">
-                    已切换到 Agent: <strong>${agentName}</strong>，开始新对话生效
+            // 清空现有内容，显示切换提示
+            container.innerHTML = `
+                <div class="welcome">
+                    <h2>🔄 已切换 Agent</h2>
+                    <p style="color:#667eea;font-size:18px;"><strong>${agentName}</strong></p>
+                    <p style="color:#999;font-size:14px;">已为您创建新对话，可直接开始聊天</p>
                 </div>
             `;
-            container.appendChild(notice);
-            container.scrollTop = container.scrollHeight;
-            
-            // 3秒后移除提示
-            setTimeout(() => notice.remove(), 3000);
         }
         
         // 加载快捷语句