diff --git a/backend/services/identity-service/src/infrastructure/external/kyc/aliyun-kyc.provider.ts b/backend/services/identity-service/src/infrastructure/external/kyc/aliyun-kyc.provider.ts
index b4150024..ef4ae404 100644
--- a/backend/services/identity-service/src/infrastructure/external/kyc/aliyun-kyc.provider.ts
+++ b/backend/services/identity-service/src/infrastructure/external/kyc/aliyun-kyc.provider.ts
@@ -122,12 +122,19 @@ export class AliyunKycProvider {
 
       const response = await this.callAliyunApi(params);
 
+      // 打印完整的阿里云返回信息（脱敏后）
+      this.logger.log(`[AliyunKYC] [Level1] Aliyun API Response: ${JSON.stringify(response, null, 2)}`);
+
       // Mobile3MetaSimpleVerify 返回结果:
       // - Code: OK 表示请求成功
       // - ResultObject.BizCode: 0 表示验证通过, 其他值表示验证失败
       if (response.Code === 'OK' || response.Code === '200') {
         const bizCode = response.ResultObject?.BizCode;
-        const isMatch = response.ResultObject?.IsConsistent === '1' || bizCode === '0';
+        const isConsistent = response.ResultObject?.IsConsistent;
+        const subCode = response.ResultObject?.SubCode;
+        const isMatch = isConsistent === '1' || bizCode === '0';
+
+        this.logger.log(`[AliyunKYC] [Level1] ResultObject: BizCode=${bizCode}, IsConsistent=${isConsistent}, SubCode=${subCode}`);
 
         if (isMatch) {
           this.logger.log(`[AliyunKYC] [Level1] Verification SUCCESS for requestId: ${requestId}`);
@@ -137,7 +144,7 @@ export class AliyunKycProvider {
           };
         } else {
           const errorMsg = this.mapMobile3MetaErrorCode(bizCode);
-          this.logger.warn(`[AliyunKYC] [Level1] Verification FAILED: ${errorMsg} (BizCode: ${bizCode})`);
+          this.logger.warn(`[AliyunKYC] [Level1] Verification FAILED: ${errorMsg} (BizCode: ${bizCode}, SubCode: ${subCode})`);
           return {
             success: false,
             errorMessage: errorMsg,
@@ -145,7 +152,7 @@ export class AliyunKycProvider {
           };
         }
       } else {
-        this.logger.warn(`[AliyunKYC] [Level1] API call FAILED: ${response.Message}`);
+        this.logger.warn(`[AliyunKYC] [Level1] API call FAILED - Code: ${response.Code}, Message: ${response.Message}, RequestId: ${response.RequestId}`);
         return {
           success: false,
           errorMessage: this.mapErrorMessage(response.Code, response.Message),