diff --git a/escheduler-server/src/main/resources/worker.properties b/escheduler-server/src/main/resources/worker.properties
index d1e1dca98ae0ad4e9724638de08dc10df220114e..e3472cd335ef82c70ae7154503ed8361a36ef2a6 100644
--- a/escheduler-server/src/main/resources/worker.properties
+++ b/escheduler-server/src/main/resources/worker.properties
@@ -5,7 +5,7 @@ worker.exec.threads=100
 worker.heartbeat.interval=10
 
 # submit the number of tasks at a time
-worker.fetch.task.num = 10
+worker.fetch.task.num = 3
 
 
 # only less than cpu avg load, worker server can work. default value : the number of cpu cores * 2