diff --git a/doc/ABTEST_IN_PADDLE_SERVING.md b/doc/ABTEST_IN_PADDLE_SERVING.md
index 8dd2b30aae5faa8c20a1ff1319536b8a45638c6f..efc9e9827069c713cf2bbd0859ec14c59cca1b86 100644
--- a/doc/ABTEST_IN_PADDLE_SERVING.md
+++ b/doc/ABTEST_IN_PADDLE_SERVING.md
@@ -112,4 +112,5 @@ if [[ $? -eq 0 ]]; then
 else
     echo "test fail"
 fi
+ps -ef | grep "paddle_serving_server" | grep -v grep | awk '{print $2}' | xargs kill
 -->