diff --git a/docs/docs/en/guide/howto/datasource-setting.md b/docs/docs/en/guide/howto/datasource-setting.md
index 7db7662523..4dddb9a7a2 100644
--- a/docs/docs/en/guide/howto/datasource-setting.md
+++ b/docs/docs/en/guide/howto/datasource-setting.md
@@ -4,6 +4,9 @@
 
 We here use MySQL as an example to illustrate how to configure an external database:
 
+> NOTE: If you use MySQL, you need to manually download [mysql-connector-java driver][mysql] (8.0.16) and move it to the libs directory of DolphinScheduler
+which is `api-server/libs` and `alert-server/libs` and `master-server/libs` and `worker-server/libs`.
+
 * First of all, follow the instructions in [datasource-setting](datasource-setting.md) `Pseudo-Cluster/Cluster Initialize the Database` section to create and initialize database
 * Set the following environment variables in your terminal or modify the `bin/env/dolphinscheduler_env.sh` with your database username and password for `{user}` and `{password}`:
 
@@ -19,8 +22,10 @@ export SPRING_DATASOURCE_PASSWORD={password}
 
 ## Pseudo-Cluster/Cluster Initialize the Database
 
-DolphinScheduler metadata is stored in the relational database. Currently, supports PostgreSQL and MySQL. If you use MySQL, you need to manually download [mysql-connector-java driver][mysql] (8.0.16) and move it to the libs directory of DolphinScheduler
-which is `api-server/libs/` and `alert-server/libs` and `master-server/libs` and `worker-server/libs` and `tools/libs`. Let's take MySQL as an example for how to initialize the database:
+DolphinScheduler stores metadata in `relational database`. Currently, we support `PostgreSQL` and `MySQL`. Let's walk through how to initialize the database in `MySQL` and `PostgreSQL` :
+
+> If you use MySQL, you need to manually download [mysql-connector-java driver][mysql] (8.0.16) and move it to the libs directory of DolphinScheduler which is `api-server/libs` and `alert-server/libs` and `master-server/libs` and `worker-server/libs`.
+
 
 For mysql 5.6 / 5.7
 
@@ -51,9 +56,27 @@ mysql> GRANT ALL PRIVILEGES ON dolphinscheduler.* TO '{user}'@'localhost';
 mysql> FLUSH PRIVILEGES;
 ``` 
 
-Then, modify `./bin/env/dolphinscheduler_env.sh` to use mysql, change {user} and {password} to what you set in the previous step.
+For PostgreSQL: 
+```shell
+# Use psql-tools to login PostgreSQL
+psql
+# Create a database
+postgres=# CREATE DATABASE dolphinscheduler;
+# Replace {user} and {password} with your username and password
+postgres=# CREATE USER {user} PASSWORD {password};
+postgres=# ALTER DATABASE dolphinscheduler OWNER TO {user};
+# Logout PostgreSQL
+postgres=#\q
+# Exec cmd below in terminal, add config to pg_hba.conf and reload PostgreSQL config, replace {ip} to DS cluster ip addresses
+echo "host    dolphinscheduler   {user}    {ip}     md5" >> $PGDATA/pg_hba.conf
+pg_ctl reload
+```
+
+Then, modify `./bin/env/dolphinscheduler_env.sh`, change {user} and {password} to what you set in the previous step.
 
+For MySQL:
 ```shell
+# for mysql
 export DATABASE=${DATABASE:-mysql}
 export SPRING_PROFILES_ACTIVE=${DATABASE}
 export SPRING_DATASOURCE_URL="jdbc:mysql://127.0.0.1:3306/dolphinscheduler?useUnicode=true&characterEncoding=UTF-8&useSSL=false"
@@ -61,6 +84,16 @@ export SPRING_DATASOURCE_USERNAME={user}
 export SPRING_DATASOURCE_PASSWORD={password}
 ```
 
+For PostgreSQL:
+```shell
+# for postgresql
+export DATABASE=${DATABASE:-postgresql}
+export SPRING_PROFILES_ACTIVE=${DATABASE}
+export SPRING_DATASOURCE_URL="jdbc:postgresql://127.0.0.1:5432/dolphinscheduler"
+export SPRING_DATASOURCE_USERNAME={user}
+export SPRING_DATASOURCE_PASSWORD={password}
+```
+
 After the above steps done you would create a new database for DolphinScheduler, then run the Shell script to init database:
 
 ```shell
diff --git a/docs/docs/zh/guide/howto/datasource-setting.md b/docs/docs/zh/guide/howto/datasource-setting.md
index 97154659b2..f9a223ee84 100644
--- a/docs/docs/zh/guide/howto/datasource-setting.md
+++ b/docs/docs/zh/guide/howto/datasource-setting.md
@@ -4,6 +4,8 @@
 
 我们这里以 MySQL 为例来说明如何配置外部数据库：
 
+> 如果使用 MySQL 需要手动下载 [mysql-connector-java 驱动][mysql] (8.0.16) 并移动到 DolphinScheduler 的每个模块的 libs 目录下，其中包括 `api-server/libs` 和 `alert-server/libs` 和 `master-server/libs` 和 `worker-server/libs`。
+
 * 首先，参照 [数据源配置](datasource-setting.md) `伪分布式/分布式安装初始化数据库` 创建并初始化数据库
 * 在你的命令行或者修改 bin/env/dolphinscheduler_env.sh 设定下列环境变量，将 `{user}` 和 `{password}` 改为你数据库的用户名和密码
 
@@ -19,8 +21,10 @@ export SPRING_DATASOURCE_PASSWORD={password}
 
 ## 伪分布式/分布式安装初始化数据库
 
-DolphinScheduler 元数据存储在关系型数据库中，目前支持 PostgreSQL 和 MySQL，如果使用 MySQL 则需要手动下载 [mysql-connector-java 驱动][mysql] (8.0.16) 并移动到 DolphinScheduler 的每个模块的 libs 目录下
-其中包括 `api-server/libs/` 和 `alert-server/libs` 和 `master-server/libs` 和 `worker-server/libs` 和 `tools/libs`。下面以 MySQL 为例，说明如何初始化数据库
+DolphinScheduler 元数据存储在关系型数据库中，目前支持 PostgreSQL 和 MySQL。下面分别介绍如何使用 MySQL 和 PostgresQL 初始化数据库。
+
+> 如果使用 MySQL 需要手动下载 [mysql-connector-java 驱动][mysql] (8.0.16) 并移动到 DolphinScheduler 的每个模块的 libs 目录下，其中包括 `api-server/libs` 和 `alert-server/libs` 和 `master-server/libs` 和 `worker-server/libs`。
+
 
 对于mysql 5.6 / 5.7：
 
@@ -51,9 +55,28 @@ mysql> GRANT ALL PRIVILEGES ON dolphinscheduler.* TO '{user}'@'localhost';
 mysql> FLUSH PRIVILEGES;
 ```
 
+对于 PostgreSQL：
+
+```shell
+# 采用命令行工具登陆 PostgreSQL
+psql
+# 创建数据库
+postgres=# CREATE DATABASE dolphinscheduler;
+# 修改 {user} 和 {password} 为你希望的用户名和密码
+postgres=# CREATE USER {user} PASSWORD {password};
+postgres=# ALTER DATABASE dolphinscheduler OWNER TO {user};
+# 退出 PostgreSQL
+postgres=#\q
+# 在终端执行如下命令，向配置文件新增登陆权限，并重载 PostgreSQL 配置，替换 {ip} 为对应的 DS 集群服务器 IP 地址段
+echo "host    dolphinscheduler   {user}    {ip}     md5" >> $PGDATA/pg_hba.conf
+pg_ctl reload
+```
+
 然后修改`./bin/env/dolphinscheduler_env.sh`，将username和password改成你在上一步中设置的用户名{user}和密码{password}
 
+对于 MySQL：
 ```shell
+# for mysql
 export DATABASE=${DATABASE:-mysql}
 export SPRING_PROFILES_ACTIVE=${DATABASE}
 export SPRING_DATASOURCE_URL="jdbc:mysql://127.0.0.1:3306/dolphinscheduler?useUnicode=true&characterEncoding=UTF-8&useSSL=false"
@@ -61,6 +84,16 @@ export SPRING_DATASOURCE_USERNAME={user}
 export SPRING_DATASOURCE_PASSWORD={password}
 ```  
 
+对于 PostgreSQL：
+```shell
+# for postgresql
+export DATABASE=${DATABASE:-postgresql}
+export SPRING_PROFILES_ACTIVE=${DATABASE}
+export SPRING_DATASOURCE_URL="jdbc:postgresql://127.0.0.1:5432/dolphinscheduler"
+export SPRING_DATASOURCE_USERNAME={user}
+export SPRING_DATASOURCE_PASSWORD={password}
+```
+
 完成上述步骤后，您已经为 DolphinScheduler 创建一个新数据库，现在你可以通过快速的 Shell 脚本来初始化数据库
 
 ```shell
diff --git a/docs/docs/zh/guide/installation/pseudo-cluster.md b/docs/docs/zh/guide/installation/pseudo-cluster.md
index 6fb20f6304..3856f884c7 100644
--- a/docs/docs/zh/guide/installation/pseudo-cluster.md
+++ b/docs/docs/zh/guide/installation/pseudo-cluster.md
@@ -150,7 +150,7 @@ export PATH=$HADOOP_HOME/bin:$SPARK_HOME1/bin:$SPARK_HOME2/bin:$PYTHON_HOME/bin:
 bash ./bin/install.sh
 ```
 
-> **_注意:_** 第一次部署的话，可能出现 5 次`sh: bin/dolphinscheduler-daemon.sh: No such file or directory`相关信息，次为非重要信息直接忽略即可
+> **_注意:_** 第一次部署的话，可能出现 5 次`sh: bin/dolphinscheduler-daemon.sh: No such file or directory`相关信息，此为非重要信息直接忽略即可
 
 ## 登录 DolphinScheduler