diff --git a/app.go b/app.go
index c7a17f4..c7e3ff5 100644
--- a/app.go
+++ b/app.go
@@ -17,7 +17,8 @@ import (
 
 type App interface {
 	GetPkgName() string
-	NewUuid() int64
+	NewGlobalUuid() string
+	NewNodeUuid() int64
 	GetInstanceId() int32
 	GetNodeId() int32
 	GetZoneId() int32
@@ -183,7 +184,11 @@ func (this *app) run() {
 	}
 }
 
-func (this *app) NewUuid() int64 {
+func (this *app) NewGlobalUuid() string {
+	return q5.ToString(this.uuid.Generate())
+}
+
+func (this *app) NewNodeUuid() int64 {
 	return this.uuid.Generate()
 }