diff --git a/migration/README.md b/migration/README.md
index 46cc52598..37c1f2e1a 100644
--- a/migration/README.md
+++ b/migration/README.md
@@ -1,7 +1,7 @@
 # Migration guide
 Migration is a module for migrating database schema between different version of project [Harbor](https://github.com/vmware/harbor)
 
-This module is for those machine running Harbor's old version, such as 0.1.0. If your harbor' version is up to date, please ignore this module.
+This module is for those machine running Harbor's old version, such as 0.1.0. If your Harbor' version is up to date, please ignore this module.
 
 **WARNING!!** You must backup your data before migrating
 
@@ -14,9 +14,8 @@ This module is for those machine running Harbor's old version, such as 0.1.0. If
     docker build -t your-image-name .
     ```
 
-you may change `/data/database` to the mysql volumes path you set in docker-compose.yml.
 ###Migrate Step
-- step 1: stop and remove harbor service
+- step 1: stop and remove Harbor service
 
     ``` 
     docker-compose down
@@ -33,33 +32,25 @@ you may change `/data/database` to the mysql volumes path you set in docker-comp
 
 
 
-- step 4: rebuild newest harbor images and restart service
+- step 4: rebuild newest Harbor images and restart service
 
     ```
     docker-compose build && docker-compose up -d
     ```
 
-###All migration operation
-- show instruction of harbor-migration
+You may change `/data/database` to the mysql volumes path you set in docker-compose.yml.
+
+###Migration operation reference
+- You can use `help` to show instruction of harbor-migration
 
     ```docker run migrate-tool help```
     
-- test mysql connection in harbor-migration
+- You can use `test` to test mysql connection in harbor-migration
 
     ```docker run -v /data/database:/var/lib/mysql migrate-tool test```
 
-- create backup file in `/path/to/backup`
-
-    ```
-    docker run -ti -v /data/database:/var/lib/mysql -v /path/to/backup:/harbor-migration/backup migrate-tool backup
-    ```
-
-- restore from backup file in `/path/to/backup`
+- You can restore from backup file in `/path/to/backup`
 
     ```
     docker run -ti -v /data/database:/var/lib/mysql -v /path/to/backup:/harbor-migration/backup migrate-tool restore
     ```
-
-- perform database schema upgrade
-
-    ```docker run -ti -v /data/database:/var/lib/mysql migrate-tool up head```