diff --git a/app/payment/zpay.py b/app/payment/zpay.py
index 96aa3d0..b738826 100644
--- a/app/payment/zpay.py
+++ b/app/payment/zpay.py
@@ -4,6 +4,7 @@ ZPAY 支付渠道实现
 支持：页面跳转支付、API 接口支付、异步通知验签
 """
 import hashlib
+import json
 from typing import Any, Dict, Optional
 
 import requests
@@ -119,6 +120,12 @@ class ZPayProvider(PaymentProvider):
             result = resp.json()
         except Exception:
             result = {}
+        # ZPAY 可能返回二次编码的 JSON（body 为 JSON 字符串），需再次解析
+        if isinstance(result, str):
+            try:
+                result = json.loads(result)
+            except Exception:
+                result = {}
         if not isinstance(result, dict):
             result = {}
         try: