diff --git a/endpoint/motanCommonEndpoint.go b/endpoint/motanCommonEndpoint.go
index be0bfa91..538967ec 100644
--- a/endpoint/motanCommonEndpoint.go
+++ b/endpoint/motanCommonEndpoint.go
@@ -360,6 +360,9 @@ func (m *MotanCommonEndpoint) SetURL(url *motan.URL) {
 }
 
 func (m *MotanCommonEndpoint) IsAvailable() bool {
+	if m.available.Load() == nil {
+		return false
+	}
 	return m.available.Load().(bool)
 }
 
diff --git a/endpoint/motanCommonEndpoint_test.go b/endpoint/motanCommonEndpoint_test.go
index edb70c98..2957c717 100644
--- a/endpoint/motanCommonEndpoint_test.go
+++ b/endpoint/motanCommonEndpoint_test.go
@@ -14,6 +14,23 @@ import (
 	"time"
 )
 
+func TestNotInitCommonEndpoint(t *testing.T) {
+	url := &motan.URL{Port: 8989, Protocol: "motan"}
+	url.PutParam(motan.TimeOutKey, "100")
+	url.PutParam(motan.AsyncInitConnection, "false")
+	ep := &MotanCommonEndpoint{}
+	ep.SetURL(url)
+
+	ep.SetProxy(true)
+	ep.SetSerialization(&serialize.SimpleSerialization{})
+	assert.Equal(t, false, ep.IsAvailable())
+	assert.Nil(t, ep.keepaliveRunning.Load())
+
+	ep.Initialize()
+	assert.Equal(t, true, ep.IsAvailable())
+	assert.Equal(t, false, ep.keepaliveRunning.Load())
+}
+
 func TestGetV1Name(t *testing.T) {
 	url := &motan.URL{Port: 8989, Protocol: "motan"}
 	url.PutParam(motan.TimeOutKey, "100")