diff --git a/zdxt-modules/zdxt-enforcement-code/src/main/java/com/zdxt/enforcementcode/domain/EnterpriseUser.java b/zdxt-modules/zdxt-enforcement-code/src/main/java/com/zdxt/enforcementcode/domain/EnterpriseUser.java
index 037cd476..0ad16758 100644
--- a/zdxt-modules/zdxt-enforcement-code/src/main/java/com/zdxt/enforcementcode/domain/EnterpriseUser.java
+++ b/zdxt-modules/zdxt-enforcement-code/src/main/java/com/zdxt/enforcementcode/domain/EnterpriseUser.java
@@ -79,6 +79,11 @@ public class EnterpriseUser extends TenantEntity {
      */
     private String password;
 
+    /**
+     * 深i企用户ID
+     */
+    private String siqUserId;
+
     /**
      * 账号状态（0正常 1停用）
      */
diff --git a/zdxt-modules/zdxt-enforcement-code/src/main/java/com/zdxt/enforcementcode/service/enterprise/impl/AppEnterpriseLoginServiceImpl.java b/zdxt-modules/zdxt-enforcement-code/src/main/java/com/zdxt/enforcementcode/service/enterprise/impl/AppEnterpriseLoginServiceImpl.java
index 5d59f4ae..ae331e23 100644
--- a/zdxt-modules/zdxt-enforcement-code/src/main/java/com/zdxt/enforcementcode/service/enterprise/impl/AppEnterpriseLoginServiceImpl.java
+++ b/zdxt-modules/zdxt-enforcement-code/src/main/java/com/zdxt/enforcementcode/service/enterprise/impl/AppEnterpriseLoginServiceImpl.java
@@ -199,13 +199,15 @@ public class AppEnterpriseLoginServiceImpl implements IAppEnterpriseLoginService
      * @return 是否操作成功
      */
     private EnterpriseUser saveOrUpdateEnterpriseUser(JSONObject userInfo) {
-        String phone = IdCardCryptoUtil.symmetricDecryptIdCard(secretKey, userInfo.getString("phone"));
+        String phone = safeDecryptPhone(userInfo.getString("phone"));
         String account = userInfo.getString("account");
+        String siqUserId = userInfo.getString("userId");
         String loginName = StringUtils.isNotEmpty(account) ? account : phone;
+        loginName = StringUtils.isNotEmpty(loginName) ? loginName : siqUserId;
         String userType = UserType.APP_USER.getUserType();
         EnterpriseUser newUser = null;
         if (StringUtils.isEmpty(loginName)) {
-            log.error("深i企用户账号和手机号均为空");
+            log.error("深i企用户账号、手机号、用户ID均为空");
             throw new BaseException("深i企用户账号不能为空");
         }
 
@@ -213,7 +215,6 @@ public class AppEnterpriseLoginServiceImpl implements IAppEnterpriseLoginService
         queryWrapper.eq(EnterpriseUser::getLoginName, loginName);
 
         EnterpriseUser existUser = enterpriseUserMapper.selectOne(queryWrapper);
-        Long userId;
         if (existUser == null) {
             log.info("企业用户不存在，执行新增操作: userName={}, userType={}", loginName, userType);
             newUser = buildEnterpriseUser(userInfo, userType);
@@ -238,15 +239,18 @@ public class AppEnterpriseLoginServiceImpl implements IAppEnterpriseLoginService
      */
     private EnterpriseUser buildEnterpriseUser(JSONObject userInfo, String userType) {
         EnterpriseUser user = new EnterpriseUser();
-        String phone = IdCardCryptoUtil.symmetricDecryptIdCard(secretKey, userInfo.getString("phone"));
+        String phone = safeDecryptPhone(userInfo.getString("phone"));
         String account = userInfo.getString("account");
+        String siqUserId = userInfo.getString("userId");
         String loginName = StringUtils.isNotEmpty(account) ? account : phone;
+        loginName = StringUtils.isNotEmpty(loginName) ? loginName : siqUserId;
         // 基本信息
         user.setUserName(userInfo.getString("userName"));
         user.setUserType(userType);
         user.setLoginName(loginName);
         user.setPhonenumber(phone);
         user.setNickName(userInfo.getString("userName"));
+        user.setSiqUserId(siqUserId);
 
         // 设置默认部门ID
         user.setDeptId(UserConstants.DEFAULT_DEPT);
@@ -550,4 +554,16 @@ public class AppEnterpriseLoginServiceImpl implements IAppEnterpriseLoginService
 
         return token;
     }
+
+    private String safeDecryptPhone(String phone) {
+        if (StringUtils.isEmpty(phone)) {
+            return null;
+        }
+        try {
+            return IdCardCryptoUtil.symmetricDecryptIdCard(secretKey, phone);
+        } catch (Exception e) {
+            log.warn("解密手机号失败: {}", phone, e);
+            return null;
+        }
+    }
 }