diff --git a/linkis-dist/deploy-config/db.sh b/linkis-dist/deploy-config/db.sh
index 586a2b3495..7302ad035d 100644
--- a/linkis-dist/deploy-config/db.sh
+++ b/linkis-dist/deploy-config/db.sh
@@ -34,13 +34,15 @@ HIVE_META_URL=""
 HIVE_META_USER=""
 HIVE_META_PASSWORD=""
 
-LK_HOST=
+### define openLookeng  parameters for connection.
+OLK_HOST=
 OLK_PORT=
 OLK_CATALOG=
 OLK_SCHEMA=
 OLK_USER=
 OLK_PASSWORD=
 
+### define Presto parameters for connection.
 PRESTO_HOST=
 PRESTO_PORT=
 PRESTO_CATALOG=
diff --git a/linkis-dist/deploy-config/linkis-env.sh b/linkis-dist/deploy-config/linkis-env.sh
index 9321967a29..17cd8ca44a 100644
--- a/linkis-dist/deploy-config/linkis-env.sh
+++ b/linkis-dist/deploy-config/linkis-env.sh
@@ -178,6 +178,6 @@ export ENABLE_HDFS=true
 export ENABLE_HIVE=true
 export ENABLE_SPARK=true
 
-## if MYSQL_CONNECT_JAVA_PATH is set, the linkis can check JDBC driver
+## define  MYSQL_CONNECT_JAVA_PATH&OLK_JDBC_PATH, the linkis can check JDBC driver
 MYSQL_CONNECT_JAVA_PATH=
 OLK_JDBC_PATH=
\ No newline at end of file