diff --git a/README.md b/README.md
index 7198cb3..b4429e6 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,7 @@ core:
   worker_num: 0 # default worker number is runtime.NumCPU()
   queue_num: 0 # default queue number is 8192
   max_notification: 100
+  sync: false # set true if you get http response after finish send notification.
   mode: "release"
   ssl: false
   cert_path: "cert.pem"
diff --git a/config/config.go b/config/config.go
index 7b8e892..a43a961 100644
--- a/config/config.go
+++ b/config/config.go
@@ -24,6 +24,7 @@ type SectionCore struct {
 	WorkerNum       int64          `yaml:"worker_num"`
 	QueueNum        int64          `yaml:"queue_num"`
 	Mode            string         `yaml:"mode"`
+	Sync            bool           `yaml:"sync"`
 	SSL             bool           `yaml:"ssl"`
 	CertPath        string         `yaml:"cert_path"`
 	KeyPath         string         `yaml:"key_path"`
@@ -123,6 +124,7 @@ func BuildDefaultPushConf() ConfYaml {
 	conf.Core.WorkerNum = int64(runtime.NumCPU())
 	conf.Core.QueueNum = int64(8192)
 	conf.Core.Mode = "release"
+	conf.Core.Sync = false
 	conf.Core.SSL = false
 	conf.Core.CertPath = "cert.pem"
 	conf.Core.KeyPath = "key.pem"
diff --git a/config/config.yml b/config/config.yml
index b079239..81191ac 100644
--- a/config/config.yml
+++ b/config/config.yml
@@ -3,6 +3,7 @@ core:
   worker_num: 0 # default worker number is runtime.NumCPU()
   queue_num: 0 # default queue number is 8192
   max_notification: 100
+  sync: false # set true if you get http response after finish send notification.
   mode: "release"
   ssl: false
   cert_path: "cert.pem"
diff --git a/config/config_test.go b/config/config_test.go
index 7f72015..829dfea 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -59,6 +59,7 @@ func (suite *ConfigTestSuite) TestValidateConfDefault() {
 	assert.Equal(suite.T(), int64(runtime.NumCPU()), suite.ConfGorushDefault.Core.WorkerNum)
 	assert.Equal(suite.T(), int64(8192), suite.ConfGorushDefault.Core.QueueNum)
 	assert.Equal(suite.T(), "release", suite.ConfGorushDefault.Core.Mode)
+	assert.Equal(suite.T(), false, suite.ConfGorushDefault.Core.Sync)
 	assert.Equal(suite.T(), false, suite.ConfGorushDefault.Core.SSL)
 	assert.Equal(suite.T(), "cert.pem", suite.ConfGorushDefault.Core.CertPath)
 	assert.Equal(suite.T(), "key.pem", suite.ConfGorushDefault.Core.KeyPath)
@@ -118,6 +119,7 @@ func (suite *ConfigTestSuite) TestValidateConf() {
 	assert.Equal(suite.T(), int64(runtime.NumCPU()), suite.ConfGorush.Core.WorkerNum)
 	assert.Equal(suite.T(), int64(8192), suite.ConfGorush.Core.QueueNum)
 	assert.Equal(suite.T(), "release", suite.ConfGorush.Core.Mode)
+	assert.Equal(suite.T(), false, suite.ConfGorush.Core.Sync)
 	assert.Equal(suite.T(), false, suite.ConfGorush.Core.SSL)
 	assert.Equal(suite.T(), "cert.pem", suite.ConfGorush.Core.CertPath)
 	assert.Equal(suite.T(), "key.pem", suite.ConfGorush.Core.KeyPath)
diff --git a/gorush/notification.go b/gorush/notification.go
index 37bfe35..471968f 100644
--- a/gorush/notification.go
+++ b/gorush/notification.go
@@ -7,6 +7,7 @@ import (
 	"net/url"
 	"os"
 	"path/filepath"
+	"sync"
 	"time"
 
 	"github.com/google/go-gcm"
@@ -63,6 +64,7 @@ type PushNotification struct {
 	Sound            string   `json:"sound,omitempty"`
 	Data             D        `json:"data,omitempty"`
 	Retry            int      `json:"retry,omitempty"`
+	wg               *sync.WaitGroup
 
 	// Android
 	APIKey                string           `json:"api_key,omitempty"`
@@ -85,6 +87,13 @@ type PushNotification struct {
 	MutableContent bool     `json:"mutable-content,omitempty"`
 }
 
+// Done decrements the WaitGroup counter.
+func (p *PushNotification) Done() {
+	if p.wg != nil {
+		p.wg.Done()
+	}
+}
+
 // CheckMessage for check request message
 func CheckMessage(req PushNotification) error {
 	var msg string
@@ -214,6 +223,7 @@ func startWorker() {
 // queueNotification add notification to queue list.
 func queueNotification(req RequestPush) int {
 	var count int
+	wg := sync.WaitGroup{}
 	for _, notification := range req.Notifications {
 		switch notification.Platform {
 		case PlatFormIos:
@@ -225,11 +235,16 @@ func queueNotification(req RequestPush) int {
 				continue
 			}
 		}
+		wg.Add(1)
+		notification.wg = &wg
 		QueueNotification <- notification
-
 		count += len(notification.Tokens)
 	}
 
+	if PushConf.Core.Sync {
+		wg.Wait()
+	}
+
 	StatStorage.AddTotalCount(int64(count))
 
 	return count
@@ -351,7 +366,7 @@ func GetIOSNotification(req PushNotification) *apns.Notification {
 // PushToIOS provide send notification to APNs server.
 func PushToIOS(req PushNotification) bool {
 	LogAccess.Debug("Start push notification for iOS")
-
+	defer req.Done()
 	var retryCount = 0
 	var maxRetry = PushConf.Ios.MaxRetry
 
@@ -456,7 +471,7 @@ func GetAndroidNotification(req PushNotification) gcm.HttpMessage {
 // PushToAndroid provide send notification to Android server.
 func PushToAndroid(req PushNotification) bool {
 	LogAccess.Debug("Start push notification for Android")
-
+	defer req.Done()
 	var APIKey string
 	var retryCount = 0
 	var maxRetry = PushConf.Android.MaxRetry
@@ -486,7 +501,6 @@ Retry:
 	if err != nil {
 		// GCM server error
 		LogError.Error("GCM server error: " + err.Error())
-
 		return false
 	}
 
diff --git a/gorush/notification_test.go b/gorush/notification_test.go
index 1490cb5..0ea310a 100644
--- a/gorush/notification_test.go
+++ b/gorush/notification_test.go
@@ -604,6 +604,42 @@ func TestDisabledAndroidNotifications(t *testing.T) {
 	assert.Equal(t, 1, count)
 }
 
+func TestSyncModeForNotifications(t *testing.T) {
+	PushConf = config.BuildDefaultPushConf()
+
+	PushConf.Ios.Enabled = true
+	PushConf.Ios.KeyPath = "../certificate/certificate-valid.pem"
+	InitAPNSClient()
+
+	PushConf.Android.Enabled = true
+	PushConf.Android.APIKey = os.Getenv("ANDROID_API_KEY")
+
+	// enable sync mode
+	PushConf.Core.Sync = true
+
+	androidToken := os.Getenv("ANDROID_TEST_TOKEN")
+
+	req := RequestPush{
+		Notifications: []PushNotification{
+			//ios
+			{
+				Tokens:   []string{"11aa01229f15f0f0c52029d8cf8cd0aeaf2365fe4cebc4af26cd6d76b7919ef7"},
+				Platform: PlatFormIos,
+				Message:  "Welcome",
+			},
+			// android
+			{
+				Tokens:   []string{androidToken, "bbbbb"},
+				Platform: PlatFormAndroid,
+				Message:  "Welcome",
+			},
+		},
+	}
+
+	count := queueNotification(req)
+	assert.Equal(t, 3, count)
+}
+
 func TestDisabledIosNotifications(t *testing.T) {
 	PushConf = config.BuildDefaultPushConf()
 
diff --git a/gorush/server.go b/gorush/server.go
index 49a94b5..c8fc545 100644
--- a/gorush/server.go
+++ b/gorush/server.go
@@ -56,11 +56,11 @@ func pushHandler(c *gin.Context) {
 		return
 	}
 
-	// queue notification.
-	go queueNotification(form)
+	counts := queueNotification(form)
 
 	c.JSON(http.StatusOK, gin.H{
 		"success": "ok",
+		"counts":  counts,
 	})
 }