diff --git a/docs/nebula-exchange/use-exchange/ex-ug-import-from-csv.md b/docs/nebula-exchange/use-exchange/ex-ug-import-from-csv.md
index d52515c49fc..b47c66b1e01 100644
--- a/docs/nebula-exchange/use-exchange/ex-ug-import-from-csv.md
+++ b/docs/nebula-exchange/use-exchange/ex-ug-import-from-csv.md
@@ -110,7 +110,7 @@
   nebula: {
     address:{
       # 以下为 Nebula Graph 的 Graph 服务和 Meta 服务所在机器的 IP 地址及端口
-      # 如果有多个地址，格式为 "ip1:port,ip2:port,ip3:port"
+      # 如果有多个地址，格式为 "ip1:port","ip2:port","ip3:port"
       # 不同地址之间以英文逗号 (,) 隔开
       graph:["127.0.0.1:3699"]
       meta:["127.0.0.1:45500"]
diff --git a/docs/nebula-exchange/use-exchange/ex-ug-import-from-neo4j.md b/docs/nebula-exchange/use-exchange/ex-ug-import-from-neo4j.md
index 4516fee5b1e..c346b8b3da5 100644
--- a/docs/nebula-exchange/use-exchange/ex-ug-import-from-neo4j.md
+++ b/docs/nebula-exchange/use-exchange/ex-ug-import-from-neo4j.md
@@ -147,7 +147,7 @@ Neo4j 的数据集信息如下：
   nebula: {
     address:{
       # 以下为 Nebula Graph 的 Graph 服务和 Meta 服务所在机器的 IP 地址及端口。
-      # 如果有多个地址，格式为 "ip1:port,ip2:port,ip3:port"。
+      # 如果有多个地址，格式为 "ip1:port","ip2:port","ip3:port"。
       # 不同地址之间以英文逗号 (,) 隔开。
       graph:["127.0.0.1:3699"]
       meta:["127.0.0.1:45500"]
diff --git a/docs/nebula-exchange/use-exchange/ex-ug-import-hive.md b/docs/nebula-exchange/use-exchange/ex-ug-import-hive.md
index b4a92a98db3..862f89cbe35 100644
--- a/docs/nebula-exchange/use-exchange/ex-ug-import-hive.md
+++ b/docs/nebula-exchange/use-exchange/ex-ug-import-hive.md
@@ -177,7 +177,7 @@ only showing top 20 rows
   nebula: {
     address:{
       # 以下为 Nebula Graph 的 Graph 服务和 Meta 服务所在机器的 IP 地址及端口
-      # 如果有多个地址，格式为 "ip1:port,ip2:port,ip3:port"
+      # 如果有多个地址，格式为 "ip1:port","ip2:port","ip3:port"
       # 不同地址之间以英文逗号 (,) 隔开
       graph:["127.0.0.1:3699"]
       meta:["127.0.0.1:45500"]
@@ -323,7 +323,7 @@ only showing top 20 rows
 完成配置后，运行以下命令检查配置文件格式是否正确。关于参数的说明，参考 [导入命令参数](../parameter-reference/ex-ug-para-import-command.md)。
 
 ```bash
-$SPARK_HOME/bin/spark-submit --master "local" --class com.vesoft.nebula.tools.importer.Exchange /path/to/exchange-1.1.0.jar -c /path/to/conf/hive_application.conf -D
+$SPARK_HOME/bin/spark-submit --master "local" --class com.vesoft.nebula.tools.importer.Exchange /path/to/exchange-1.1.0.jar -c /path/to/conf/hive_application.conf -h -D
 ```
 
 ### 步骤 5. 向 Nebula Graph 导入数据
diff --git a/docs/nebula-exchange/use-exchange/ex-ug-import-json.md b/docs/nebula-exchange/use-exchange/ex-ug-import-json.md
index e9ab872fe94..2befa8c7761 100644
--- a/docs/nebula-exchange/use-exchange/ex-ug-import-json.md
+++ b/docs/nebula-exchange/use-exchange/ex-ug-import-json.md
@@ -114,7 +114,7 @@
   nebula: {
     address:{
       # 以下为 Nebula Graph 的 Graph 服务和 Meta 服务所在机器的 IP 地址及端口
-      # 如果有多个地址，格式为 "ip1:port,ip2:port,ip3:port"
+      # 如果有多个地址，格式为 "ip1:port","ip2:port","ip3:port"
       # 不同地址之间以英文逗号 (,) 隔开
       graph:["127.0.0.1:3699"]
       meta:["127.0.0.1:45500"]