diff --git a/.env-example b/.env-example
index 9b99949..4ca16ab 100644
--- a/.env-example
+++ b/.env-example
@@ -3,6 +3,11 @@
 DATA_CENTER_NAME = dc-default
 UI_PORT = 8500
 
+###### server RPC端口映射
+SERVER_1_RPC_PORT = 8311
+SERVER_2_RPC_PORT = 8312
+SERVER_3_RPC_PORT = 8313
+
 ###### server data
 SERVER_1_DATA = ./data/server1
 SERVER_2_DATA = ./data/server2