diff --git a/docker/initsql/a-n9e.sql b/docker/initsql/a-n9e.sql
index 89af895b..89dff8cc 100644
--- a/docker/initsql/a-n9e.sql
+++ b/docker/initsql/a-n9e.sql
@@ -207,6 +207,7 @@ CREATE TABLE `alert_rule` (
     `enable_stime` char(5) not null default '00:00',
     `enable_etime` char(5) not null default '23:59',
     `enable_days_of_week` varchar(32) not null default '' comment 'split by space: 0 1 2 3 4 5 6',
+    `enable_in_bg` tinyint(1) not null default 0 comment '1: only this bg 0: global',
     `notify_recovered` tinyint(1) not null comment 'whether notify when recovery',
     `notify_channels` varchar(255) not null default '' comment 'split by space: sms voice email dingtalk wecom',
     `notify_groups` varchar(255) not null default '' comment 'split by space: 233 43',
diff --git a/src/models/alert_rule.go b/src/models/alert_rule.go
index 128a4420..24768f5b 100644
--- a/src/models/alert_rule.go
+++ b/src/models/alert_rule.go
@@ -28,6 +28,7 @@ type AlertRule struct {
 	EnableEtime          string      `json:"enable_etime"`                 // e.g. 23:59
 	EnableDaysOfWeek     string      `json:"-"`                            // split by space: 0 1 2 3 4 5 6
 	EnableDaysOfWeekJSON []string    `json:"enable_days_of_week" gorm:"-"` // for fe
+	EnableInBG           int         `json:"enable_in_bg"`                 // 0: global 1: enable one busi-group
 	NotifyRecovered      int         `json:"notify_recovered"`             // whether notify when recovery
 	NotifyChannels       string      `json:"-"`                            // split by space: sms voice email dingtalk wecom
 	NotifyChannelsJSON   []string    `json:"notify_channels" gorm:"-"`     // for fe
diff --git a/src/server/engine/worker.go b/src/server/engine/worker.go
index f364867f..eb006a05 100644
--- a/src/server/engine/worker.go
+++ b/src/server/engine/worker.go
@@ -202,6 +202,12 @@ func (r RuleEval) judge(vectors []Vector) {
 			tagsMap[string(label)] = string(value)
 		}
 
+		// handle rule tags
+		for _, tag := range r.rule.AppendTagsJSON {
+			arr := strings.SplitN(tag, "=", 2)
+			tagsMap[arr[0]] = arr[1]
+		}
+
 		// handle target note
 		targetIdent, has := vectors[i].Labels["ident"]
 		targetNote := ""
@@ -209,13 +215,13 @@ func (r RuleEval) judge(vectors []Vector) {
 			target, exists := memsto.TargetCache.Get(string(targetIdent))
 			if exists {
 				targetNote = target.Note
-			}
-		}
 
-		// handle rule tags
-		for _, tag := range r.rule.AppendTagsJSON {
-			arr := strings.SplitN(tag, "=", 2)
-			tagsMap[arr[0]] = arr[1]
+				// 对于包含ident的告警事件，check一下ident所属bg和rule所属bg是否相同
+				// 如果告警规则选择了只在本BG生效，那其他BG的机器就不能因此规则产生告警
+				if r.rule.EnableInBG == 1 && target.GroupId != r.rule.GroupId {
+					continue
+				}
+			}
 		}
 
 		event := &models.AlertCurEvent{