diff --git a/assets/js/routes/user-center-auth.js b/assets/js/routes/user-center-auth.js
index b852b939..4c343354 100644
--- a/assets/js/routes/user-center-auth.js
+++ b/assets/js/routes/user-center-auth.js
@@ -27,6 +27,33 @@
     });
   }
 
+  function loadScript(src) {
+    return new Promise(function (resolve, reject) {
+      var existing = document.querySelector('script[src="' + src + '"]');
+      if (existing) {
+        if (existing.dataset.loaded === '1') return resolve();
+        existing.addEventListener('load', resolve, { once: true });
+        existing.addEventListener('error', reject, { once: true });
+        return;
+      }
+      var script = document.createElement('script');
+      script.src = src;
+      script.async = true;
+      script.onload = function () { script.dataset.loaded = '1'; resolve(); };
+      script.onerror = reject;
+      document.head.appendChild(script);
+    });
+  }
+
+  function aliyunMetaInfo(config) {
+    if (config.provider !== 'aliyun') return Promise.resolve('');
+    return loadScript('https://o.alicdn.com/yd-cloudauth/cloudauth-cdn/jsvm_all.js').then(function () {
+      if (typeof window.getMetaInfo !== 'function') throw new Error('阿里云 MetaInfo 组件未加载成功');
+      var meta = window.getMetaInfo();
+      return typeof meta === 'string' ? meta : JSON.stringify(meta || {});
+    });
+  }
+
   function init(root) {
     if (!root || root.dataset.identityBound === '1') return;
     root.dataset.identityBound = '1';
@@ -107,10 +134,13 @@
         payload.client_request_id = uuid();
         var button = createForm.querySelector('[type="submit"]');
         if (button) button.disabled = true;
-        request(config.restBase, config, {
-          method: 'POST',
-          headers: { 'Content-Type': 'application/json' },
-          body: JSON.stringify(payload)
+        aliyunMetaInfo(config).then(function (metaInfo) {
+          if (metaInfo) payload.meta_info = metaInfo;
+          return request(config.restBase, config, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify(payload)
+          });
         }).then(render).catch(function (error) {
           var node = createForm.querySelector('[data-auth-message]');
           if (node) node.textContent = error.message;
diff --git a/inc/helpers/user-center-renderers/profile-auth.php b/inc/helpers/user-center-renderers/profile-auth.php
index 3b01d65c..6bc7cdf7 100644
--- a/inc/helpers/user-center-renderers/profile-auth.php
+++ b/inc/helpers/user-center-renderers/profile-auth.php
@@ -25,6 +25,7 @@ $config = [
     'nonce' => wp_create_nonce('wp_rest'),
     'currentUuid' => $locks_application ? (string) ($record['application_uuid'] ?? '') : '',
     'currentStage' => $locks_application ? $stage : '',
+    'provider' => sanitize_key((string) ($settings['provider'] ?? 'aliyun')),
     'allowManual' => !empty($settings['allow_manual_fallback']),
 ];
 ?>
diff --git a/src/AKSRT/Identity/Provider/AliyunProvider.php b/src/AKSRT/Identity/Provider/AliyunProvider.php
index b8b17ec9..c74c0aa2 100644
--- a/src/AKSRT/Identity/Provider/AliyunProvider.php
+++ b/src/AKSRT/Identity/Provider/AliyunProvider.php
@@ -138,6 +138,10 @@ final class AliyunProvider implements ProviderInterface {
             'CertName' => (string) ($request['person_name'] ?? ''),
             'CertNo' => preg_replace('/\s+/', '', (string) ($request['id_number'] ?? '')),
         ];
+        $meta_info = trim((string) ($request['meta_info'] ?? ''));
+        if ($meta_info !== '') {
+            $params['MetaInfo'] = $meta_info;
+        }
         $return_url = esc_url_raw((string) ($request['return_url'] ?? ''));
         if ($this->is_public_https_url($return_url)) {
             $params['ReturnUrl'] = $return_url;