diff --git a/changelog.md b/changelog.md
index a93fda6e..cc58518b 100644
--- a/changelog.md
+++ b/changelog.md
@@ -3,6 +3,7 @@
 ## 4.2.7
 
 - 修复两个微服务相同path问题
+- 修复Python-SDK下参数传递问题
 
 ## 4.2.6
 
diff --git a/sop-common/sop-service-common/src/main/java/com/gitee/sop/servercommon/param/ApiArgumentResolver.java b/sop-common/sop-service-common/src/main/java/com/gitee/sop/servercommon/param/ApiArgumentResolver.java
index bed09eaf..19a9db5b 100644
--- a/sop-common/sop-service-common/src/main/java/com/gitee/sop/servercommon/param/ApiArgumentResolver.java
+++ b/sop-common/sop-service-common/src/main/java/com/gitee/sop/servercommon/param/ApiArgumentResolver.java
@@ -143,7 +143,6 @@ public class ApiArgumentResolver implements SopHandlerMethodArgumentResolver {
         Object paramObj = this.getParamObject(methodParameter, nativeWebRequest);
         if (paramObj != null) {
             // JSR-303验证
-
             if (paramObj instanceof SingleParameterWrapper) {
                 SingleParameterWrapper parameterWrapper = (SingleParameterWrapper) paramObj;
                 paramValidator.validateBizParam(parameterWrapper.getWrapperObject());
@@ -203,10 +202,10 @@ public class ApiArgumentResolver implements SopHandlerMethodArgumentResolver {
             return singleParameterWrapper;
         }
         Object param;
-        // 如果是json字符串
-        if (JSONValidator.from(bizContent).validate()) {
+        try {
             param = JSON.parseObject(bizContent, parameterType);
-        } else {
+        } catch (Exception e) {
+            log.error("非json参数，biz_content:{}, requestParams:{}", bizContent, requestParams);
             // 否则认为是 aa=1&bb=33 形式
             Map<String, Object> query = OpenUtil.parseQueryToMap(bizContent);
             param = new JSONObject(query).toJavaObject(parameterType);
diff --git a/sop-example/sop-story/src/main/java/com/gitee/sop/storyweb/controller/Example1001_BaseController.java b/sop-example/sop-story/src/main/java/com/gitee/sop/storyweb/controller/Example1001_BaseController.java
index 3f4b9c2c..498ffc29 100644
--- a/sop-example/sop-story/src/main/java/com/gitee/sop/storyweb/controller/Example1001_BaseController.java
+++ b/sop-example/sop-story/src/main/java/com/gitee/sop/storyweb/controller/Example1001_BaseController.java
@@ -269,12 +269,12 @@ public class Example1001_BaseController {
 
     @Open(value = "member.info.get")
     @RequestMapping("/member/info/get")
-    public MemberInfoGetResult bigData(MemberInfoGetParam param) {
+    public MemberInfoGetResult memberInfoGet(MemberInfoGetParam param) {
         MemberInfoGetResult result = new MemberInfoGetResult();
         MemberInfoGetResultMemberInfo memberInfo = new MemberInfoGetResultMemberInfo();
         memberInfo.setIsVip((byte)1);
         memberInfo.setVipEndtime(new Date());
-        result.setName(param.getName());
+        result.setName(JSON.toJSONString(param));
         result.setId(11);
         result.setMemberInfo(memberInfo);
         return result;
diff --git a/sop-sdk/sdk-python/common/OpenClient.py b/sop-sdk/sdk-python/common/OpenClient.py
index 821c5f3e..8f60464b 100644
--- a/sop-sdk/sdk-python/common/OpenClient.py
+++ b/sop-sdk/sdk-python/common/OpenClient.py
@@ -103,15 +103,13 @@ class OpenClient:
             'charset': 'UTF-8',
             'sign_type': 'RSA2',
             'timestamp': time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()),
-            'version': request.get_version()
+            'version': request.get_version(),
+            'biz_content': json.dumps(params)
         }
 
         if token is not None:
             all_params['access_token'] = token
 
-        # 添加业务参数
-        all_params.update(params)
-
         # 构建sign
         sign = SignUtil.create_sign(all_params, self.__private_key, 'RSA2')
         all_params['sign'] = sign
diff --git a/sop-sdk/sdk-python/test/test.py b/sop-sdk/sdk-python/test/test.py
index f98400cf..f249a3a0 100644
--- a/sop-sdk/sdk-python/test/test.py
+++ b/sop-sdk/sdk-python/test/test.py
@@ -48,7 +48,7 @@ class MyTestCase(unittest.TestCase):
         # for f in files.values():
         #     f.close()
 
-        if response.is_success():
+        if response.get('code') == '10000':
             print 'response: ', response
             print 'is_vip:', response.get('member_info').get('is_vip', 0)
         else: