diff --git a/Jenkinsfile b/Jenkinsfile
index 2654006eaa..1d65c2eee9 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -139,6 +139,21 @@ pipeline {
     post('Notification') {
         always {
             sh "echo \$WEBHOOK\n"
+            script {
+                try {
+                    if ($BUILD_PARENT || $BUILD_SDK) {
+                        println "JOB_NAME=$JOB_NAME, BUILD_NUMBER=$BUILD_NUMBER, BUILD_URL=$BUILD_URL"
+                        Hudson.instance.getItemByFullName("$JOB_NAME").builds.each {
+                            if(it.number == Integer.parseInt("$BUILD_NUMBER")) {
+                                println 'Deleting build number ' + it.number
+                                it.delete()
+                                break;
+                            }
+                        }
+                    }
+                } catch (NoSuchElementException) {
+                }
+            }
             withCredentials([string(credentialsId: 'wechat-bot-webhook', variable: 'WEBHOOK')]) {
                 qyWechatNotification failNotify: true, mentionedId: '', mentionedMobile: '', webhookUrl: "$WEBHOOK"
             }