diff --git a/js/app.js b/js/app.js
index d1f025c..73e9068 100644
--- a/js/app.js
+++ b/js/app.js
@@ -33,7 +33,15 @@ function createNewSession() {
     };
 }
 
-function startNewSession() {
+async function startNewSession() {
+    // 先保存当前会话（如果有的话）
+    const db = state.get(KEYS.DB);
+    const currentSession = state.get(KEYS.CURRENT_SESSION);
+    if (db && currentSession && currentSession.messages.length > 0) {
+        currentSession.updatedAt = Date.now();
+        await db.saveSession(currentSession);
+    }
+
     const session = createNewSession();
     state.set(KEYS.CURRENT_SESSION, session);
     state.set(KEYS.IS_HISTORY_VIEW, false);
diff --git a/js/components/input-area.js b/js/components/input-area.js
index 58ef29e..aab23a3 100644
--- a/js/components/input-area.js
+++ b/js/components/input-area.js
@@ -174,6 +174,9 @@ export async function sendMessage() {
     msgsToAdd.forEach(m => currentSession.messages.push(m));
     renderMessages();
 
+    // 立即保存（防止新建会话或刷新时丢失用户消息）
+    await saveCurrentSession();
+
     // 清空输入
     chatInputEl.value = '';
     pendingImages = [];
@@ -307,7 +310,7 @@ export async function sendMessage() {
             currentSession.messages.push(partialMsg);
             const contentDiv = placeholder?.querySelector('.msg-content');
             if (contentDiv) contentDiv.innerHTML = `<p>${existingContent}</p><p><code>[已中断]</code></p>`;
-            saveCurrentSession();
+            await saveCurrentSession();
         } else {
             if (placeholder) placeholder.remove();
         }