diff --git a/api_document.md b/api_document.md
index 8d245b76f..61589b93e 100644
--- a/api_document.md
+++ b/api_document.md
@@ -2825,7 +2825,6 @@ DELETE /api/:owner/:repo/protected_branches/:branch_name
 *示例*
 ```
 curl -X DELETE \
--d 'branch_name=master' \
 http://localhost:3000/api/trustie/truesite/protected_branches/master.json | jq
 ```
 *请求参数说明:*
@@ -2928,6 +2927,72 @@ http://localhost:3000/api/trustie/truesite/protected_branches.json | jq
 ```
 ---
 
+### 获取某个具体的保护分支
+```
+GET /api/:owner/:repo/protected_branches/:branch_name
+```
+*示例*
+```
+curl -X GET \
+http://localhost:3000/api/trustie/truesite/protected_branches/master.json | jq
+```
+*请求参数说明:*
+
+|参数名|必选|类型|说明|
+|-|-|-|-|
+|owner             |是|string |项目拥有者登录名  |
+|repo              |否|boolean |仓库名称  |
+|branch_name       |是|string |保护分支名称  |
+
+
+*返回参数说明:*
+
+|参数名|类型|说明|
+|-|-|-|
+|branch_name       |string |保护分支名称  |
+|enable_push             |boolean |是否启用推送, true: 启用; false: 不启用, 默认为false  |
+|enable_push_whitelist   |boolean |是否启用白名单推送, true: 启用; false: 不启用, 默认为false, 该参数与enable_push参数为单选项，只能选择|
+|push_whitelist_usernames        |array |推送白名单用户(即具有写操作的项目成员名称的数组), 该参数与enable_push_whitelist参数配合使用  |
+|enable_merge_whitelist        |boolean |是否启用合并白名单, true: 启用, false: 不启用, 默认为false |
+|merge_whitelist_usernames         |array |合并白名单用户(即具有写操作的项目成员名称的数组), 该参数与enable_merge_whitelist配合使用 |
+|enable_status_check     |boolean |是否启用状态检查, true: 启用; false: 不启用, 默认为false |
+|required_approvals     |int |所需的批准数， 默认为0 |
+|enable_approvals_whitelist     |boolean |是否启用批准仅限列入白名单的用户或团队, true: 启用, false: 不启用, 默认为false |
+|approvals_whitelist_username     |array |审查者白名单(即具有写操作的项目成员名称的数组), 该参数与enable_approvals_whitelist配合使用 |
+|block_on_rejected_reviews     |boolean |是否启用拒绝审核阻止合并功能, true: 启用, false: 不启用, 默认为false |
+|dismiss_stale_approvals     |boolean |是否启用取消过时的批准, true: 启用, false: 不启用, 默认为false |
+|require_signed_commits     |boolean |是否需要签名提交, true: 是, false: 否, 默认为false |
+|block_on_outdated_branch     |boolean |如果拉取请求已经过时，是否阻止合并, true: 是, false: 否, 默认为false |
+|created_at      |string|创建时间|
+|updated_at      |string|更新时间|
+
+返回值
+```
+{
+  "branch_name": "develop",
+  "enable_push": true,
+  "required_approvals": 0,
+  "enable_status_check": true,
+  "enable_push_whitelist": true,
+  "enable_merge_whitelist": true,
+  "enable_approvals_whitelist": false,
+  "dismiss_stale_approvals": false,
+  "block_on_rejected_reviews": false,
+  "block_on_outdated_branch": false,
+  "require_signed_commits": false,
+  "merge_whitelist_usernames": [
+      "jasder"
+  ],
+  "push_whitelist_usernames": [
+      "jasder"
+  ],
+  "approvals_whitelist_usernames": [],
+  "created_at": "2020-12-02 17:40",
+  "updated_at": "2020-12-03 11:29"
+}
+```
+---
+
 ### DevOps相关api
 ---
 
diff --git a/app/controllers/protected_branches_controller.rb b/app/controllers/protected_branches_controller.rb
index 9b111c789..3c532270c 100644
--- a/app/controllers/protected_branches_controller.rb
+++ b/app/controllers/protected_branches_controller.rb
@@ -1,6 +1,9 @@
 class ProtectedBranchesController < ApplicationController
+  include OperateProjectAbilityAble
+
   before_action :require_login
   before_action :load_repository
+  before_action :authorizate_user_can_edit_project!
 
   def index
     scope = ProtectedBranch.all
@@ -10,6 +13,8 @@ class ProtectedBranchesController < ApplicationController
 
   def create
     @protected_branch = ProtectedBranches::CreateService.call(@repository, @owner, params)
+
+    render_protected_branch_json
   end
 
   def update
@@ -22,13 +27,13 @@ class ProtectedBranchesController < ApplicationController
     render_ok
   end
 
+  def show
+    @protected_branch = ProtectedBranches::GetService.call(@repository, @owner, params)
+  end
+
   private
     def render_protected_branch_json
-      if @protected_branch.persisted?
-        render json: Jbuilder.new { |json| json.extract! @protected_branch, :can_push  }.target!
-      else
-        render_error('创建失败!')
-      end
+      @protected_branch.persisted? ? @protected_branch : render_error('创建失败!')
     end
 
 end
diff --git a/app/services/protected_branches/get_service.rb b/app/services/protected_branches/get_service.rb
new file mode 100644
index 000000000..7dcfe9a65
--- /dev/null
+++ b/app/services/protected_branches/get_service.rb
@@ -0,0 +1,23 @@
+module ProtectedBranches
+  class GetService < ProtectedBranches::BaseService
+    def call
+      validate_branch_name!
+
+      protected_branch
+		rescue ActiveRecord::RecordNotFound
+      raise Error, '404'
+    rescue => ex
+      Rails.logger.info ex
+      raise Error, ex
+    end
+
+    private
+      def protected_branch
+        @protected_branch ||= @repository.protected_branches.find_by!(branch_name: params[:branch_name])
+      end
+
+      def validate_branch_name!
+        raise Error, '分支名称不能为空' if params[:branch_name].blank?
+      end
+  end
+end
diff --git a/app/views/protected_branches/show.json.jbuilder b/app/views/protected_branches/show.json.jbuilder
new file mode 100644
index 000000000..5354db7c3
--- /dev/null
+++ b/app/views/protected_branches/show.json.jbuilder
@@ -0,0 +1 @@
+json.partial! @protected_branch, as: :protected_branch
diff --git a/config/routes.rb b/config/routes.rb
index 2010e614a..e2f28baeb 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -329,6 +329,10 @@ Rails.application.routes.draw do
           '/protected_branches/',
           to: 'protected_branches#index'
         )
+        get(
+          '/protected_branches/:branch_name',
+          to: 'protected_branches#show'
+        )
         delete(
           '/protected_branches/:branch_name',
           to: 'protected_branches#destroy'