diff --git a/app/controllers/issues_controller.rb b/app/controllers/issues_controller.rb
index 45a8530a3..96e186b42 100644
--- a/app/controllers/issues_controller.rb
+++ b/app/controllers/issues_controller.rb
@@ -125,9 +125,15 @@ class IssuesController < ApplicationController
         end
       end
       if params[:issue_tag_ids].present?
-        params[:issue_tag_ids].each do |tag|
-          IssueTagsRelate.create!(issue_id: @issue.id, issue_tag_id: tag)
-        end
+        if params[:issue_tag_ids].is_a?(Array) && params[:issue_tag_ids].size > 1
+          return normal_status(-1, "最多只能创建一个标记。")
+        elsif params[:issue_tag_ids].is_a?(Array) && params[:issue_tag_ids].size == 1
+          params[:issue_tag_ids].each do |tag|
+            IssueTagsRelate.create!(issue_id: @issue.id, issue_tag_id: tag)
+          end
+        else
+          return normal_status(-1, "请输入正确的标记。")
+        end 
       end
       if params[:assigned_to_id].present?
         Tiding.create!(user_id: params[:assigned_to_id], trigger_user_id: current_user.id,
@@ -146,7 +152,7 @@ class IssuesController < ApplicationController
       Rails.logger.info "[ATME] maybe to at such users: #{@atme_receivers.pluck(:login)}"
       AtmeService.call(current_user, @atme_receivers, @issue) if @atme_receivers.size > 0
 
-      render json: {status: 0, message: "创建成", id: @issue.id}
+      render json: {status: 0, message: "创建成功", id: @issue.id}
     else
       normal_status(-1, "创建失败")
     end
@@ -165,11 +171,17 @@ class IssuesController < ApplicationController
     last_token = @issue.token
     last_status_id = @issue.status_id
     @issue&.issue_tags_relates&.destroy_all if params[:issue_tag_ids].blank?
-    if params[:issue_tag_ids].present? && !@issue&.issue_tags_relates.where(issue_tag_id: params[:issue_tag_ids]).exists?
-      @issue&.issue_tags_relates&.destroy_all
-      params[:issue_tag_ids].each do |tag|
-        IssueTagsRelate.create(issue_id: @issue.id, issue_tag_id: tag)
-      end
+    if params[:issue_tag_ids].present? 
+      if params[:issue_tag_ids].is_a?(Array) && params[:issue_tag_ids].size > 1
+        return normal_status(-1, "最多只能创建一个标记。")
+      elsif params[:issue_tag_ids].is_a?(Array) && params[:issue_tag_ids].size == 1
+        @issue&.issue_tags_relates&.destroy_all
+        params[:issue_tag_ids].each do |tag|
+          IssueTagsRelate.create!(issue_id: @issue.id, issue_tag_id: tag)
+        end
+      else
+        return normal_status(-1, "请输入正确的标记。")
+      end 
     end
 
     issue_files = params[:attachment_ids]
diff --git a/app/controllers/pull_requests_controller.rb b/app/controllers/pull_requests_controller.rb
index 86b877170..39bfadb40 100644
--- a/app/controllers/pull_requests_controller.rb
+++ b/app/controllers/pull_requests_controller.rb
@@ -91,10 +91,16 @@ class PullRequestsController < ApplicationController
 
           @issue&.issue_tags_relates&.destroy_all if params[:issue_tag_ids].blank?
           if params[:issue_tag_ids].present? && !@issue&.issue_tags_relates.where(issue_tag_id: params[:issue_tag_ids]).exists?
-            @issue&.issue_tags_relates&.destroy_all
-            params[:issue_tag_ids].each do |tag|
-              IssueTagsRelate.create(issue_id: @issue.id, issue_tag_id: tag)
-            end
+            if params[:issue_tag_ids].is_a?(Array) && params[:issue_tag_ids].size > 1
+              return normal_status(-1, "最多只能创建一个标记。")
+            elsif params[:issue_tag_ids].is_a?(Array) && params[:issue_tag_ids].size == 1
+              @issue&.issue_tags_relates&.destroy_all
+              params[:issue_tag_ids].each do |tag|
+                IssueTagsRelate.create!(issue_id: @issue.id, issue_tag_id: tag)
+              end
+            else
+              return normal_status(-1, "请输入正确的标记。")
+            end 
           end
 
           if @issue.update_attributes(@issue_params)
@@ -104,9 +110,16 @@ class PullRequestsController < ApplicationController
 
               if gitea_pull[:status] === :success
                 if params[:issue_tag_ids].present?
-                  params[:issue_tag_ids].each do |tag|
-                    IssueTagsRelate.create(issue_id: @issue.id, issue_tag_id: tag)
-                  end
+                  if params[:issue_tag_ids].is_a?(Array) && params[:issue_tag_ids].size > 1
+                    return normal_status(-1, "最多只能创建一个标记。")
+                  elsif params[:issue_tag_ids].is_a?(Array) && params[:issue_tag_ids].size == 1
+                    @issue&.issue_tags_relates&.destroy_all
+                    params[:issue_tag_ids].each do |tag|
+                      IssueTagsRelate.create!(issue_id: @issue.id, issue_tag_id: tag)
+                    end
+                  else
+                    return normal_status(-1, "请输入正确的标记。")
+                  end 
                 end
                 if params[:status_id].to_i == 5
                   @issue.issue_times.update_all(end_time: Time.now)
diff --git a/app/services/pull_requests/create_service.rb b/app/services/pull_requests/create_service.rb
index 67766be64..6789f904b 100644
--- a/app/services/pull_requests/create_service.rb
+++ b/app/services/pull_requests/create_service.rb
@@ -58,8 +58,12 @@ class PullRequests::CreateService < ApplicationService
   end
 
   def save_issue_tags_relates!
-    issue_tag_ids.each do |tag|
-      IssueTagsRelate.create!(issue_id: pull_issue.id, issue_tag_id: tag)
+    if issue_tag_ids.size > 1 
+      raise "最多只能创建一个标记。" 
+    else 
+      issue_tag_ids.each do |tag|
+        IssueTagsRelate.create!(issue_id: pull_issue.id, issue_tag_id: tag)
+      end
     end
   end
 
diff --git a/app/views/pull_requests/_detail.json.jbuilder b/app/views/pull_requests/_detail.json.jbuilder
index 06c6377a9..5c9347420 100644
--- a/app/views/pull_requests/_detail.json.jbuilder
+++ b/app/views/pull_requests/_detail.json.jbuilder
@@ -1,5 +1,6 @@
 pr = issue.pull_request
 json.pull_request_id pr.id
+json.pull_request_number pr.gitea_number
 json.pull_request_status pr.status
 json.pull_request_head pr.head 
 json.pull_request_base pr.base