diff --git a/src/pages/user.vue b/src/pages/user.vue
index 1a05fea..306c904 100644
--- a/src/pages/user.vue
+++ b/src/pages/user.vue
@@ -69,6 +69,10 @@ onMounted(() => {
   const envVersion = accountInfo.miniProgram.envVersion;
   if (envVersion !== "release") showLogout.value = true;
 });
+
+/* global __BUILD_TIME__ */
+/** 构建时刻，由 vite.config.js define 在打包时自动注入；仅开发/体验版展示 */
+const buildVersion = typeof __BUILD_TIME__ !== 'undefined' ? __BUILD_TIME__ : '';
 </script>
 
 <template>
@@ -140,6 +144,10 @@ onMounted(() => {
           :onClick="toAudioTestPage"
           v-if="showLogout"
         />
+        <UserItem
+          title="版本信息"
+          v-if="showLogout"
+        >{{ buildVersion }}</UserItem>
         <UserItem
           title="退出登录(仅用于测试)"
           :onClick="logout"
diff --git a/vite.config.js b/vite.config.js
index f727f00..4ee5277 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -12,6 +12,14 @@ export default defineConfig({
   plugins: [
     uni(),
   ],
+  /** 构建时常量注入：__BUILD_TIME__ 在源码中展开为精确的打包时刻字符串 */
+  define: (() => {
+    const d = new Date();
+    const pad = (n) => String(n).padStart(2, '0');
+    // 格式：YYYY.MMDD.HHmm，如 2026.0514.1530
+    const version = `${d.getFullYear()}.${pad(d.getMonth() + 1)}${pad(d.getDate())}.${pad(d.getHours())}${pad(d.getMinutes())}`;
+    return { __BUILD_TIME__: JSON.stringify(version) };
+  })(),
   
 })