diff --git a/pkg/cibot/issue.go b/pkg/cibot/issue.go
index 04e7d9e3792dc6a76c24ca82de43acbba1e99103..97d9d02d3596f4ed5a2b66bdb15b1b2c8981f2db 100644
--- a/pkg/cibot/issue.go
+++ b/pkg/cibot/issue.go
@@ -2,7 +2,8 @@ package cibot
 
 import (
 	"fmt"
-
+	"strings"
+	"gitee.com/openeuler/ci-bot/pkg/cibot/database"
 	"gitee.com/openeuler/go-gitee/gitee"
 	"github.com/golang/glog"
 )
@@ -18,32 +19,55 @@ func (s *Server) HandleIssueEvent(event *gitee.IssueEvent) {
 	case "open":
 		glog.Info("received a issue open event")
 
+		owner := event.Repository.Namespace
+		repo := event.Repository.Path
+		number := event.Issue.Number
+		// get sig name add a tag to describe the sig name of the repo.
+		sigName := s.getSigNameFromRepo(event.Repository.FullName)
+		if len(sigName) > 0 {
+			label := []string{fmt.Sprintf("sig/%s", sigName)}
+			labelops := gitee.PullRequestLabelPostParam{s.Config.GiteeToken, label}
+			_, _, error := s.GiteeClient.LabelsApi.PostV5ReposOwnerRepoIssuesNumberLabels(s.Context, owner, repo, number, labelops)
+			if error != nil {
+				glog.Errorf("unable to add label in issue: %v", error)
+			}
+		}
+
+		//get committor list:
+		var ps []database.Privileges
+		err := database.DBConnection.Model(&database.Privileges{}).
+			Where("owner = ? and repo = ? and type = ?", owner, repo, PrivilegeDeveloper).Find(&ps).Error
+		if err != nil {
+			glog.Errorf("unable to get members: %v", err)
+		}
+		var committors []string
+		if len(ps) > 0 {
+			for _, p := range ps {
+				if len(committors) < 10 {
+					committor := fmt.Sprintf("***@%s***", p.User)
+					committors = append(committors, committor)
+				}
+			}
+		}
+		committor_list := strings.Join(committors, ", ")
+		if len(committor_list) > 0 {
+			sigPath := fmt.Sprintf(SigPath, sigName)
+			proInfo := fmt.Sprintf(DisplayCommittors, sigName, sigPath)
+			committor_list = proInfo + committor_list + "."
+		}
+
 		// add comment
 		body := gitee.IssueCommentPostParam{}
 		body.AccessToken = s.Config.GiteeToken
-		body.Body = fmt.Sprintf(tipBotMessage, event.Sender.Login, s.Config.CommunityName, s.Config.CommunityName,
-			s.Config.BotName, s.Config.CommandLink)
+		body.Body = fmt.Sprintf(tipBotMessage, event.Sender.Login, s.Config.CommunityName, s.Config.CommandLink, committor_list)
 		//Issue could exists without belonging to any repo.
 		if event.Repository == nil {
 			glog.Warningf("Issue is not created on repo, skip posting issue comment.")
 			return
 		}
-		owner := event.Repository.Namespace
-		repo := event.Repository.Path
-		number := event.Issue.Number
-		_, _, err := s.GiteeClient.IssuesApi.PostV5ReposOwnerRepoIssuesNumberComments(s.Context, owner, repo, number, body)
+		_, _, err = s.GiteeClient.IssuesApi.PostV5ReposOwnerRepoIssuesNumberComments(s.Context, owner, repo, number, body)
 		if err != nil {
 			glog.Errorf("unable to add comment in issue: %v", err)
 		}
-
-		sigName := s.getSigNameFromRepo(event.Repository.FullName)
-		if len(sigName) > 0 {
-			label := []string{fmt.Sprintf("sig/%s", sigName)}
-			labelops := gitee.PullRequestLabelPostParam{s.Config.GiteeToken, label}
-			_, _, err = s.GiteeClient.LabelsApi.PostV5ReposOwnerRepoIssuesNumberLabels(s.Context, owner, repo, number, labelops)
-			if err != nil {
-				glog.Errorf("unable to add label in issue: %v", err)
-			}
-		}
 	}
 }
diff --git a/pkg/cibot/lgtm.go b/pkg/cibot/lgtm.go
index b9f10d48cad80bb9b623272f7a90bab9550d9bff..308a53817342731d3c3377bb142ed70a039172fd 100644
--- a/pkg/cibot/lgtm.go
+++ b/pkg/cibot/lgtm.go
@@ -11,9 +11,9 @@ import (
 )
 
 const (
-	lgtmSelfOwnMessage = `***lgtm*** can not be added in your self-own pull request. :astonished: `
-	lgtmAddedMessage   = `***lgtm*** is added in this pull request by: ***%s***. :wave: 
-**NOTE:**: If you find this pull request unmerged while all conditions meets, you are encouraged use command: "/check-pr" to try it again. :smile: `
+	lgtmSelfOwnMessage = `Sorry, you cannot add ***lgtm*** to the pull request you created. :astonished:`
+	lgtmAddedMessage   = `***lgtm*** was added to this pull request by: ***%s***. :wave:
+**NOTE:**: If this pull request is not merged while all conditions are met, comment "/check-pr" to try again. :smile: `
 	lgtmRemovedMessage         = `***lgtm*** is removed in this pull request by: ***%s***. :flushed: `
 	lgtmAddNoPermissionMessage = `Thanks for your review, ***%s***, your opinion is very important to us.:wave:
 The maintainers will consider your advice carefully.`
diff --git a/pkg/cibot/pullrequest.go b/pkg/cibot/pullrequest.go
index 603be48b72026c2a385f51986707bb998ec12a83..487701c461b2123cb11f4af29c09a078fca005e1 100644
--- a/pkg/cibot/pullrequest.go
+++ b/pkg/cibot/pullrequest.go
@@ -237,7 +237,7 @@ func (s *Server) UpdateLabelsBySourceBranchChange(delLabels, updateLabels []stri
 		glog.Infof("remove labels successfully: %v", strDelLabel)
 	}
 	// add comment for update labels
-	commentContent := `new changes are detected. ***%s*** is removed in this pull request by: ***%s***. :flushed: `
+	commentContent := `Changes detected. ***%s*** was removed from this pull request by: ***%s***. :flushed: `
 	cBody := gitee.PullRequestCommentPostParam{}
 	cBody.AccessToken = s.Config.GiteeToken
 	cBody.Body = fmt.Sprintf(commentContent, strDelLabel, s.Config.BotName)
diff --git a/pkg/cibot/utils.go b/pkg/cibot/utils.go
index a20a60c05847cb34b89c5e5ee1fdd983a17e9948..64bcff1c7233bfbc03eb316d91b454bc2c77552d 100644
--- a/pkg/cibot/utils.go
+++ b/pkg/cibot/utils.go
@@ -21,10 +21,11 @@ const (
 	LabelLgtmWithCommenter = "lgtm-%s"
 	LabelNameApproved      = "approved"
 	LabelHiddenValue       = "<input type=hidden value=%s />"
-	tipBotMessage          = `Hey ***%s***, Welcome to %s Community.
-You can follow the instructions at <%s> to interact with the Bot.
+	tipBotMessage          = `Hey ***%s***, welcome to the %s Community.
+I'm the Bot here serving you. You can find the instructions on how to interact with me at
+<%s>.
 %s`
-	DisplayCommittors = `If you have any questions, you could contact SIG: [%s](%s), and maintainers: `
+	DisplayCommittors = `If you have any questions, please contact the SIG: [%s](%s), and any of the maintainers: `
 	SigPath           = `https://gitee.com/openeuler/community/tree/master/sig/%s`
 	AutoAddPrjMsg = `Since you have added a item to the src-openeuler.yaml file, we will automatically generate a default package in project openEuler:Factory on OBS cluster for you.
 If you need a more customized configuration, you can configure it according to the following instructions: `