diff --git a/frontend/src/views/live/New.vue b/frontend/src/views/live/New.vue
index f1ab9ad..ca3bed3 100644
--- a/frontend/src/views/live/New.vue
+++ b/frontend/src/views/live/New.vue
@@ -149,7 +149,8 @@ async function onSubmit(): Promise<void> {
     return
   }
   if (!form.value.name.trim()) {
-    ElMessage.warning('请填写实例名')
+    // #76 名称自动生成：空=没选实例，提示选实例（不再让人填名字）
+    ElMessage.warning('请先选择实例——名称将自动生成')
     return
   }
   if (!form.value.account.trim()) {
@@ -219,9 +220,10 @@ async function onSubmit(): Promise<void> {
       </div>
 
       <el-form label-width="140px" style="margin-top:16px">
-        <el-form-item label="实例名" required>
-          <el-input v-model="form.name" placeholder="live-600000" style="width: 320px" />
-          <span class="muted form-hint">页面显示用</span>
+        <!-- #76 实例名自动生成（实例名+日期minor），不再手填：只读预览，选实例即刷新 -->
+        <el-form-item label="实例名">
+          <span class="mono" style="font-size: 13px; color: var(--brand)">{{ form.name || '—（选实例后自动生成）' }}</span>
+          <span class="muted form-hint">自动生成=实例名_v日期+序号，无需修改</span>
         </el-form-item>
         <el-form-item label="交易账号" required>
           <el-input v-model="form.account" placeholder="66639661" style="width: 320px" />