diff --git a/README.md b/README.md
index 29d746923f5c2a97e9375df3b05794261ab07919..a5d0b8b3720d1fd121047d335a8f05eb71955697 100644
--- a/README.md
+++ b/README.md
@@ -295,6 +295,7 @@ Class | Method | HTTP request | Description
  - [ProjectMemberPermission](docs/ProjectMemberPermission.md)
  - [ProjectMemberPutParam](docs/ProjectMemberPutParam.md)
  - [PullRequest](docs/PullRequest.md)
+ - [PullRequestAssigneePostParam](docs/PullRequestAssigneePostParam.md)
  - [PullRequestCommentPostParam](docs/PullRequestCommentPostParam.md)
  - [PullRequestComments](docs/PullRequestComments.md)
  - [PullRequestCommits](docs/PullRequestCommits.md)
diff --git a/api/swagger.yaml b/api/swagger.yaml
index ba9e5dc33e633ab9a17303dccd626853a06ce211..bbe3f52376438a737fd608f376cd0a3634d76bb1 100644
--- a/api/swagger.yaml
+++ b/api/swagger.yaml
@@ -4266,13 +4266,6 @@ paths:
       produces:
       - "application/json"
       parameters:
-      - name: "access_token"
-        in: "formData"
-        description: "用户授权码"
-        required: false
-        type: "string"
-        x-exportParamName: "AccessToken"
-        x-optionalDataType: "String"
       - name: "owner"
         in: "path"
         description: "仓库所属空间地址(企业、组织或个人的地址path)"
@@ -4292,12 +4285,13 @@ paths:
         type: "integer"
         format: "int32"
         x-exportParamName: "Number"
-      - name: "assignees"
-        in: "formData"
-        description: "用户的个人空间地址, 以 , 分隔"
+      - in: "body"
+        name: "body"
+        description: "必选，标签的内容"
         required: true
-        type: "string"
-        x-exportParamName: "Assignees"
+        schema:
+          $ref: "#/definitions/PullRequestAssigneePostParam"
+        x-exportParamName: "Body"
       responses:
         201:
           description: "返回格式"
@@ -16141,6 +16135,23 @@ definitions:
     example:
       access_token: "access_token"
       permission: "push"
+  PullRequestAssigneePostParam:
+    type: "object"
+    properties:
+      access_token:
+        type: "string"
+        description: "用户授权码"
+        x-exportParamName: "AccessToken"
+        x-optionalDataType: "String"
+      assignees:
+        description: "用户的个人空间地址, 以 , 分隔"
+        required: true
+        type: "string"
+        x-exportParamName: "Assignees"
+    description: "assign pull request"
+    example:
+      access_token: "access_token"
+      assignees: "abc"
   PullRequestLabelPostParam:
     type: "object"
     properties:
diff --git a/docs/PullRequestAssigneePostParam.md b/docs/PullRequestAssigneePostParam.md
new file mode 100644
index 0000000000000000000000000000000000000000..ab298c922f2c0ea6b99681a43c0f23071a4e4951
--- /dev/null
+++ b/docs/PullRequestAssigneePostParam.md
@@ -0,0 +1,11 @@
+# PullRequestAssigneePostParam
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**AccessToken** | **string** | 用户授权码 | [optional] [default to null]
+**Assignees** | **string** | 用户的个人空间地址, 以 , 分隔 | [optional] [default to null]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+
diff --git a/docs/PullRequestsApi.md b/docs/PullRequestsApi.md
index 398510f63ab1cf468ee5770c32e3ba9e582dad05..d7b8b35fd68f5848312f89b50b2fddecb039d185 100644
--- a/docs/PullRequestsApi.md
+++ b/docs/PullRequestsApi.md
@@ -80,10 +80,10 @@ No authorization required
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
  **ctx** | **context.Context** | context for authentication, logging, cancellation, deadlines, tracing, etc.
-  **owner** | **string**| 仓库所属空间地址(企业、组织或个人的地址path) |
-  **repo** | **string**| 仓库路径(path) |
-  **number** | **int32**| 第几个PR，即本仓库PR的序数 |
-  **name** | **string**| 标签名称 |
+  **owner** | **string**| 仓库所属空间地址(企业、组织或个人的地址path) | 
+  **repo** | **string**| 仓库路径(path) | 
+  **number** | **int32**| 第几个PR，即本仓库PR的序数 | 
+  **name** | **string**| 标签名称 | 
  **optional** | ***DeleteV5ReposOwnerRepoPullsLabelOpts** | optional parameters | nil if no parameters
 
 ### Optional Parameters
@@ -508,9 +508,9 @@ No authorization required
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
  **ctx** | **context.Context** | context for authentication, logging, cancellation, deadlines, tracing, etc.
-  **owner** | **string**| 仓库所属空间地址(企业、组织或个人的地址path) |
-  **repo** | **string**| 仓库路径(path) |
-  **number** | **int32**| 第几个PR，即本仓库PR的序数 |
+  **owner** | **string**| 仓库所属空间地址(企业、组织或个人的地址path) | 
+  **repo** | **string**| 仓库路径(path) | 
+  **number** | **int32**| 第几个PR，即本仓库PR的序数 | 
  **optional** | ***GetV5ReposOwnerRepoPullsNumberLabelsOpts** | optional parameters | nil if no parameters
 
 ### Optional Parameters
@@ -728,7 +728,7 @@ No authorization required
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
 
 # **PostV5ReposOwnerRepoPullsNumberAssignees**
-> PullRequest PostV5ReposOwnerRepoPullsNumberAssignees(ctx, owner, repo, number, assignees, optional)
+> PullRequest PostV5ReposOwnerRepoPullsNumberAssignees(ctx, owner, repo, number, body)
 指派用户审查 Pull Request
 
 指派用户审查 Pull Request
@@ -741,19 +741,7 @@ Name | Type | Description  | Notes
   **owner** | **string**| 仓库所属空间地址(企业、组织或个人的地址path) | 
   **repo** | **string**| 仓库路径(path) | 
   **number** | **int32**| 第几个PR，即本仓库PR的序数 | 
-  **assignees** | **string**| 用户的个人空间地址, 以 , 分隔 | 
- **optional** | ***PostV5ReposOwnerRepoPullsNumberAssigneesOpts** | optional parameters | nil if no parameters
-
-### Optional Parameters
-Optional parameters are passed through a pointer to a PostV5ReposOwnerRepoPullsNumberAssigneesOpts struct
-
-Name | Type | Description  | Notes
-------------- | ------------- | ------------- | -------------
-
-
-
-
- **accessToken** | **optional.String**| 用户授权码 | 
+  **body** | [**PullRequestAssigneePostParam**](PullRequestAssigneePostParam.md)| 必选，标签的内容 | 
 
 ### Return type
 
@@ -812,10 +800,10 @@ No authorization required
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
  **ctx** | **context.Context** | context for authentication, logging, cancellation, deadlines, tracing, etc.
-  **owner** | **string**| 仓库所属空间地址(企业、组织或个人的地址path) |
-  **repo** | **string**| 仓库路径(path) |
-  **number** | **int32**| 第几个PR，即本仓库PR的序数 |
-  **body** | [**PullRequestLabelPostParam**](PullRequestLabelPostParam.md)| 必选，标签的内容 |
+  **owner** | **string**| 仓库所属空间地址(企业、组织或个人的地址path) | 
+  **repo** | **string**| 仓库路径(path) | 
+  **number** | **int32**| 第几个PR，即本仓库PR的序数 | 
+  **body** | [**PullRequestLabelPostParam**](PullRequestLabelPostParam.md)| 必选，标签的内容 | 
 
 ### Return type
 
diff --git a/gitee/api_pull_requests.go b/gitee/api_pull_requests.go
index b82260010b9f01afb98acb83c37675f727988959..01845a84328dd3ab5657f7a9e4db3dd78bbd4202 100644
--- a/gitee/api_pull_requests.go
+++ b/gitee/api_pull_requests.go
@@ -1807,18 +1807,11 @@ PullRequestsApiService 指派用户审查 Pull Request
  * @param owner 仓库所属空间地址(企业、组织或个人的地址path)
  * @param repo 仓库路径(path)
  * @param number 第几个PR，即本仓库PR的序数
- * @param assignees 用户的个人空间地址, 以 , 分隔
- * @param optional nil or *PostV5ReposOwnerRepoPullsNumberAssigneesOpts - Optional Parameters:
-     * @param "AccessToken" (optional.String) -  用户授权码
+ * @param body 必选，标签的内容
 
 @return PullRequest
 */
-
-type PostV5ReposOwnerRepoPullsNumberAssigneesOpts struct {
-	AccessToken optional.String
-}
-
-func (a *PullRequestsApiService) PostV5ReposOwnerRepoPullsNumberAssignees(ctx context.Context, owner string, repo string, number int32, assignees string, localVarOptionals *PostV5ReposOwnerRepoPullsNumberAssigneesOpts) (PullRequest, *http.Response, error) {
+func (a *PullRequestsApiService) PostV5ReposOwnerRepoPullsNumberAssignees(ctx context.Context, owner string, repo string, number int32, body PullRequestAssigneePostParam) (PullRequest, *http.Response, error) {
 	var (
 		localVarHttpMethod  = strings.ToUpper("Post")
 		localVarPostBody    interface{}
@@ -1854,10 +1847,8 @@ func (a *PullRequestsApiService) PostV5ReposOwnerRepoPullsNumberAssignees(ctx co
 	if localVarHttpHeaderAccept != "" {
 		localVarHeaderParams["Accept"] = localVarHttpHeaderAccept
 	}
-	if localVarOptionals != nil && localVarOptionals.AccessToken.IsSet() {
-		localVarFormParams.Add("access_token", parameterToString(localVarOptionals.AccessToken.Value(), ""))
-	}
-	localVarFormParams.Add("assignees", parameterToString(assignees, ""))
+	// body params
+	localVarPostBody = &body
 	r, err := a.client.prepareRequest(ctx, localVarPath, localVarHttpMethod, localVarPostBody, localVarHeaderParams, localVarQueryParams, localVarFormParams, localVarFileName, localVarFileBytes)
 	if err != nil {
 		return localVarReturnValue, nil, err
diff --git a/gitee/model_pull_request_assignee_post_param.go b/gitee/model_pull_request_assignee_post_param.go
new file mode 100644
index 0000000000000000000000000000000000000000..95dddda1a3d5b3c5c2d5924bd44d554c3c6eaeb1
--- /dev/null
+++ b/gitee/model_pull_request_assignee_post_param.go
@@ -0,0 +1,18 @@
+/*
+ * 码云 Open API
+ *
+ * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen)
+ *
+ * API version: 5.3.2
+ * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git)
+ */
+
+package gitee
+
+// assign pull request
+type PullRequestAssigneePostParam struct {
+	// 用户授权码
+	AccessToken string `json:"access_token,omitempty"`
+	// 用户的个人空间地址, 以 , 分隔
+	Assignees string `json:"assignees,omitempty"`
+}