diff --git a/OCH/mogo-och-charter-passenger/src/m1/java/com/mogo/och/bus/passenger/net/BusPassengerServiceManager.kt b/OCH/mogo-och-charter-passenger/src/m1/java/com/mogo/och/bus/passenger/net/BusPassengerServiceManager.kt
index 35eb2389d6..6561995bb5 100644
--- a/OCH/mogo-och-charter-passenger/src/m1/java/com/mogo/och/bus/passenger/net/BusPassengerServiceManager.kt
+++ b/OCH/mogo-och-charter-passenger/src/m1/java/com/mogo/och/bus/passenger/net/BusPassengerServiceManager.kt
@@ -23,12 +23,19 @@ object BusPassengerServiceManager {
         MoGoRetrofitFactory.getInstance(OchCommonConst.getBaseUrl())
             .create(PassengerServiceApi::class.java)
 
+    private var draiverSnCacher = ""
     /**
      * 获取Bus司机端的sn
      * @return
      */
     val draiverSn: String
-        get() = CallerTelematicManager.getServerToken()
+        get(){
+            val serverToken = CallerTelematicManager.getServerToken()
+            if (serverToken != draiverSnCacher && serverToken.isNotEmpty()) {
+                draiverSnCacher = serverToken
+            }
+            return draiverSnCacher
+        }
 
 
     private fun beforeNet():Boolean{