diff --git a/pkg/controller/configmap.go b/pkg/controller/configmap.go
index d23567d0..f5466650 100644
--- a/pkg/controller/configmap.go
+++ b/pkg/controller/configmap.go
@@ -231,6 +231,9 @@ func (p *PolarisController) onConfigMapUpdate(old, cur interface{}) {
 	// 5. 如果: [old/not polaris -> new/not polaris] 舍弃
 	oldIsPolaris := p.IsPolarisConfigMap(oldCm)
 	curIsPolaris := p.IsPolarisConfigMap(curCm)
+	if !oldIsPolaris && !curIsPolaris {
+		return
+	}
 
 	// 现在已经不是需要同步的北极星配置
 	if !curIsPolaris {
diff --git a/pkg/controller/controller.go b/pkg/controller/controller.go
index 4ef68c4e..a443475f 100644
--- a/pkg/controller/controller.go
+++ b/pkg/controller/controller.go
@@ -204,14 +204,14 @@ func NewPolarisController(
 
 // AllowSyncFromConfigMap 是否开启配置同步从 ConfigMap 到 Polaris
 func (p *PolarisController) AllowSyncFromConfigMap() bool {
-	return p.config.PolarisController.ConfigSync.Enable &&
-		p.config.PolarisController.ConfigSync.SyncDirection != util.SyncDirectionPolarisKubernetes
+	syncDirection := p.config.PolarisController.ConfigSync.SyncDirection
+	return p.config.PolarisController.ConfigSync.Enable && (syncDirection == util.SyncDirectionKubernetesToPolaris || syncDirection == util.SyncDirectionBoth)
 }
 
 // AllowSyncToConfigMap 是否开启配置同步从 Polaris 到 Kubernetes
 func (p *PolarisController) AllowSyncToConfigMap() bool {
-	return p.config.PolarisController.ConfigSync.Enable &&
-		p.config.PolarisController.ConfigSync.SyncDirection != util.SyncDirectionKubernetesToPolaris
+	syncDirection := p.config.PolarisController.ConfigSync.SyncDirection
+	return p.config.PolarisController.ConfigSync.Enable && (syncDirection == util.SyncDirectionPolarisToKubernetes || syncDirection == util.SyncDirectionBoth)
 }
 
 func (p *PolarisController) allowDeleteConfig() bool {
diff --git a/pkg/controller/service.go b/pkg/controller/service.go
index 5bf99b3a..5109accf 100644
--- a/pkg/controller/service.go
+++ b/pkg/controller/service.go
@@ -54,6 +54,9 @@ func (p *PolarisController) onServiceUpdate(old, current interface{}) {
 	// 5. 如果: [old/not polaris -> new/not polaris] 舍弃
 	oldIsPolaris := p.IsPolarisService(oldService)
 	curIsPolaris := p.IsPolarisService(curService)
+	if !oldIsPolaris && !curIsPolaris {
+		return
+	}
 
 	// 现在已经不是需要同步的北极星服务
 	if !curIsPolaris {
diff --git a/pkg/util/types.go b/pkg/util/types.go
index 7e5c4fd3..58966a54 100644
--- a/pkg/util/types.go
+++ b/pkg/util/types.go
@@ -67,7 +67,7 @@ const (
 
 const (
 	SyncDirectionKubernetesToPolaris = "kubernetesToPolaris"
-	SyncDirectionPolarisKubernetes   = "polarisToKubernetes"
+	SyncDirectionPolarisToKubernetes = "polarisToKubernetes"
 	SyncDirectionBoth                = "both"
 )