diff --git a/app/jobs/send_template_message_job.rb b/app/jobs/send_template_message_job.rb
index a45516ae5..c40a3c9bd 100644
--- a/app/jobs/send_template_message_job.rb
+++ b/app/jobs/send_template_message_job.rb
@@ -35,11 +35,7 @@ class SendTemplateMessageJob < ApplicationJob
       operator = User.find_by_id(operator_id)
       issue = Issue.find_by_id(issue_id)
       return unless operator.present? && issue.present? 
-      if args[2].present? 
-        receivers = User.where(id: args[2]).where.not(id: operator&.id)
-      else 
-        receivers = User.where(id: issue&.assigned_to_id).where.not(id: operator&.id)
-      end
+      receivers = issue&.assigners.where.not(id: operator&.id)
       receivers_string, content, notification_url = MessageTemplate::IssueAssigned.get_message_content(receivers, operator, issue)
       Notice::Write::CreateService.call(receivers_string, content, notification_url, source, {operator_id: operator.id, issue_id: issue.id})
       receivers.find_each do |receiver|
@@ -60,7 +56,7 @@ class SendTemplateMessageJob < ApplicationJob
       operator = User.find_by_id(operator_id)
       issue = Issue.find_by_id(issue_id)
       return unless operator.present? && issue.present?
-      receivers = User.where(id: [issue&.assigned_to_id, issue&.author_id]).where.not(id: operator&.id)
+      receivers = User.where(id: issue.assigners.pluck(:id).append(issue&.author_id)).where.not(id: operator&.id)
       receivers_string, content, notification_url = MessageTemplate::IssueChanged.get_message_content(receivers, operator, issue, change_params.symbolize_keys)
       Notice::Write::CreateService.call(receivers_string, content, notification_url, source, {operator_id: operator.id, issue_id: issue.id, change_params: change_params.symbolize_keys})
       receivers.find_each do |receiver|
@@ -71,7 +67,7 @@ class SendTemplateMessageJob < ApplicationJob
       issue_id = args[0]
       issue = Issue.find_by_id(issue_id)
       return unless issue.present?
-      receivers = User.where(id: [issue&.assigned_to_id, issue&.author_id])
+      receivers = User.where(id: issue.assigners.pluck(:id).append(issue&.author_id))
       receivers_string, content, notification_url = MessageTemplate::IssueExpire.get_message_content(receivers, issue)
       Notice::Write::CreateService.call(receivers_string, content, notification_url, source, {issue_id: issue.id})
       receivers.find_each do |receiver|
diff --git a/app/models/message_template/issue_changed.rb b/app/models/message_template/issue_changed.rb
index e8a5e5cdb..f5e8c7628 100644
--- a/app/models/message_template/issue_changed.rb
+++ b/app/models/message_template/issue_changed.rb
@@ -209,16 +209,16 @@ class MessageTemplate::IssueChanged < MessageTemplate
       change_count = change_params.keys.size
       # 疑修负责人修改
       if change_params[:assigned_to_id].present?
-        assigner1 = User.find_by_id(change_params[:assigned_to_id][0])
-        assigner2 = User.find_by_id(change_params[:assigned_to_id][1])
+        assigner1 = User.where(id: change_params[:assigned_to_id][0])
+        assigner2 = User.where(id: change_params[:assigned_to_id][1])
         if change_count > 1
           content.sub!('{ifassigner}', '<br/>') 
         else
           content.sub!('{ifassigner}', '') 
         end
         content.sub!('{endassigner}', '')
-        content.gsub!('{assigner1}', assigner1.present? ? assigner1&.real_name : '未指派成员')
-        content.gsub!('{assigner2}', assigner2.present? ? assigner2&.real_name : '未指派成员')
+        content.gsub!('{assigner1}', assigner1.present? ? assigner1.map{|a| a&.real_name}.join("、") : '无')
+        content.gsub!('{assigner2}', assigner2.present? ? assigner2.map{|a| a&.real_name}.join("、") : '无')
       else
         content.gsub!(/({ifassigner})(.*)({endassigner})/, '') 
       end
diff --git a/app/services/api/v1/issues/update_service.rb b/app/services/api/v1/issues/update_service.rb
index 45274b9c4..9aa9d6bb1 100644
--- a/app/services/api/v1/issues/update_service.rb
+++ b/app/services/api/v1/issues/update_service.rb
@@ -55,7 +55,10 @@ class Api::V1::Issues::UpdateService < ApplicationService
       build_assigner_participants unless assigner_ids.nil? # 负责人
       build_edit_participants 
       build_atme_participants if @atme_receivers.present?
-      @updated_issue.assigners = @assigners || User.none unless assigner_ids.nil?
+      unless assigner_ids.nil?
+        @previous_issue_changes.merge!(assigned_to_id: [@updated_issue.assigners.pluck(:id),  @assigners.pluck(:id)])
+        @updated_issue.assigners = @assigners || User.none 
+      end
       @updated_issue.attachments = @attachments || Attachment.none unless attachment_ids.nil?
       @updated_issue.issue_tags_relates.destroy_all & @updated_issue.issue_tags = @issue_tags || IssueTag.none unless issue_tag_ids.nil?
       @updated_issue.issue_tags_value = @issue_tags.order("id asc").pluck(:id).join(",") unless issue_tag_ids.nil?
@@ -118,12 +121,12 @@ class Api::V1::Issues::UpdateService < ApplicationService
   end
 
   def build_previous_issue_changes
-    @previous_issue_changes = @updated_issue.previous_changes.except("updated_on", "created_on")
-    if @updated_issue.previous_changes["start_date"].present? 
-      @previous_issue_changes.merge!(start_date: [@updated_issue.previous_changes["start_date"][0].to_s,  @updated_issue.previous_changes["start_date"][1].to_s])
+    @previous_issue_changes.merge!(@updated_issue.previous_changes.slice("status_id", "priority_id", "fixed_version_id", "issue_tags_value", "branch_name").symbolize_keys)
+    if @updated_issue.previous_changes[:start_date].present? 
+      @previous_issue_changes.merge!(start_date: [@updated_issue.previous_changes[:start_date][0].to_s,  @updated_issue.previous_changes[:start_date][1].to_s])
     end
-    if @updated_issue.previous_changes["due_date"].present? 
-      @previous_issue_changes.merge!(due_date: [@updated_issue.previous_changes["due_date"][0].to_s,  @updated_issue.previous_changes["due_date"][1].to_s])
+    if @updated_issue.previous_changes[:due_date].present? 
+      @previous_issue_changes.merge!(due_date: [@updated_issue.previous_changes[:due_date][0].to_s,  @updated_issue.previous_changes[:due_date][1].to_s])
     end
   end