diff --git a/cmd/gf/README.MD b/cmd/gf/README.MD
index 4ef3df992..8d35b4fc3 100644
--- a/cmd/gf/README.MD
+++ b/cmd/gf/README.MD
@@ -2,54 +2,67 @@
 
 `gf` is a powerful CLI tool for building [GoFrame](https://goframe.org) application with convenience.
 
-
 ## 1. Install
 
 ## 1) PreCompiled Binary
-You can also install `gf` tool using pre-built binaries: https://github.com/gogf/gf/releases
+
+You can also install `gf` tool using pre-built binaries: <https://github.com/gogf/gf/releases>
 
 1. `Mac` & `Linux`
-    ```shell
+
+   ```shell
     wget -O gf https://github.com/gogf/gf/releases/latest/download/gf_$(go env GOOS)_$(go env GOARCH) && chmod +x gf && ./gf install -y && rm ./gf
-    ```
+   ```
+
    > If you're using `zsh`, you might need rename your alias by command `alias gf=gf` to resolve the conflicts between `gf` and `git fetch`.
 
 2. `Windows`
+   Manually download, execute in command line it and then follow the instruction.
 
-   Manually download, execute it and then follow the instruction.
+3. Database support
 
-3. Database `sqlite` and `oracle` are not support in `gf gen` command in default as it needs `cgo` and `gcc`, you can manually make some changes to the source codes and do the building.
+   | DB | support | remarks |
+   | :------: | :------: | :------: |
+   | mysql | yes | - |
+   | mariadb | yes | - |
+   | tidb | yes | - |
+   | mssql | yes | - |
+   | oracle | yes | - |
+   | pgsql | yes | - |
+   | sqlite | yes | - |
+   | clickhouse | no | manually make some changes to the [source codes](./internal/cmd/cmd_gen_dao.go) and do the building. |
+   | dm | no | manually make some changes to the [source codes](./internal/cmd/cmd_gen_dao.go) and do the building. |
 
 ## 2) Manually Install
 
- ```shell
+```shell
 git clone https://github.com/gogf/gf && cd gf/cmd/gf && go install
- ```
-
+```
 
 ## 2. Commands
+
 ```html
 $ gf
 USAGE
     gf COMMAND [OPTION]
 
 COMMAND
-   env        show current Golang environment variables
-   run        running go codes with hot-compiled-like feature
-   gen        automatically generate go files for dao/do/entity/pb/pbentity
-   tpl        template parsing and building commands
-   init       create and initialize an empty GoFrame project
-   pack       packing any file/directory to a resource file, or a go file
-   build      cross-building go project for lots of platforms
-   docker     build docker image for current GoFrame project
-   install    install gf binary to system (might need root/admin permission)
-   version    show version information of current binary
+    env        show current Golang environment variables
+    run        running go codes with hot-compiled-like feature
+    gen        automatically generate go files for dao/do/entity/pb/pbentity
+    tpl        template parsing and building commands
+    init       create and initialize an empty GoFrame project
+    pack       packing any file/directory to a resource file, or a go file
+    build      cross-building go project for lots of platforms
+    docker     build docker image for current GoFrame project
+    install    install gf binary to system (might need root/admin permission)
+    version    show version information of current binary
 
 OPTION
-   -y, --yes       all yes for all command without prompt ask
-   -v, --version   show version information of current binary
-   -d, --debug     show internal detailed debugging information
-   -h, --help      more information about this command
+    -y, --yes       all yes for all command without prompt ask
+    -v, --version   show version information of current binary
+    -d, --debug     show internal detailed debugging information
+    -h, --help      more information about this command
 
 ADDITIONAL
     Use "gf COMMAND -h" for details about a command.
@@ -60,10 +73,3 @@ ADDITIONAL
 ### 1). Command `gf run` returns `pipe: too many open files`
 
 Please use `ulimit -n 65535` to enlarge your system configuration for max open files for current terminal shell session, and then `gf run`.
-
-
-
-
-
-
-