diff --git a/document/front_design/README.md b/document/front_design/README.md
index e07db3f..7ac37ae 100644
--- a/document/front_design/README.md
+++ b/document/front_design/README.md
@@ -18,9 +18,11 @@
 #### All template use WebApi to deal the operate
 #### Recommand Vue.js, but you still can use jQuery(Ajax) :D
 #### All Response Code (Int)
-##### `10000` `Success`
+##### `10000` `Success` `Successfully requested`
+##### `20000` `No enough times` `No enough times to song`
+##### `30000` `Forbidden` `Wrong Access (For User)`
 
-## Front(User)
+## Front (User)
 
 ### Index Page
 #### The index page use the root path ("/"),
@@ -45,7 +47,7 @@
 ###### `name` `string` `name of song`
 ###### `artists` `list` `list of artists`
 ###### `album` `dict` `album of this song`
-###### `url` `string` `the media url of this song`
+###### `url` `string` `the media url of this song (source platform or system cache)`
 ##### List of Artists Args:
 ###### `id` `int` `artist id(platform)`
 ###### `name` `string` `name of this artist`
@@ -57,7 +59,7 @@
 
 ### History Page
 #### The history page use the path "/history"
-#### Anybody can directly get history of songs
+#### Anybody can directly get the history of songs
 #### WebApi Interface Detail:
 ##### Path: `/api/history`
 ##### Method: `GET`
@@ -65,4 +67,100 @@
 ##### Response Format: `Json`
 ##### Json Args:
 ###### `code` `int` `response code`
-###### `content` `list` `list of history songs`
\ No newline at end of file
+###### `content` `list` `list of history songs`
+##### List of Songs Args(content):
+###### `pid` `int` `platform id`
+###### `id` `int` `song id(platform)`
+###### `name` `string` `name of song`
+###### `artists` `list` `list of artists`
+###### `album` `dict` `album of this song`
+###### `url` `string` `the media url of this song (system cache)`
+##### List of Artists Args:
+###### `id` `int` `artist id(platform)`
+###### `name` `string` `name of this artist`
+###### `cover` `string` `image url of this aritist`
+##### Album Args:
+###### `id` `int` `album id(platform)`
+###### `name` `string` `name of this album`
+###### `cover` `string` `image url of this album`
+
+### List Page
+#### The list page use the path "/list"
+#### Anybody can directly get the list of whitelist and blacklist
+#### WebApi Interface Detail:
+##### Path: `/api/list`
+##### Method: `GET`
+##### Args: `Nothing`
+##### Response Format: `Json`
+##### Json Args:
+###### `code` `int` `response code`
+###### `content` `dict` `dict of list, included whitelist and blacklist`
+##### Content Dict(content):
+###### `white` `list` `songs list of whitelist`
+###### `black` `list` `songs list of blacklist`
+##### List of Songs Args:
+###### `pid` `int` `platform id`
+###### `id` `int` `song id(platform)`
+###### `name` `string` `name of song`
+###### `artists` `list` `list of artists`
+###### `album` `dict` `album of this song`
+##### List of Artists Args:
+###### `id` `int` `artist id(platform)`
+###### `name` `string` `name of this artist`
+###### `cover` `string` `image url of this aritist`
+##### Album Args:
+###### `id` `int` `album id(platform)`
+###### `name` `string` `name of this album`
+###### `cover` `string` `image url of this album`
+
+### Confirm Page
+#### The confirm page use the path "/confirm"
+#### This page only use for the twice confirm
+#### Located from the search page
+#### Read the parameter from url on front code (Javascript)
+#### Get Parameter:
+##### `platform` `int` `platform id`
+##### `id` `int` `id of the song`
+#### Then use the id and platform id to requests the song detail
+#### WebApi Interface Detail:
+##### Path: `/api/detail`
+##### Method: `POST`
+##### Args: 
+###### `platform` `int` `id of the platform`
+###### `id` `int` `id of the song`
+###### `token` `string` `user token`
+##### Response Format: `Json`
+##### Json Args: 
+###### `code` `int` `response code`
+###### `content` `list` `list of songs`
+##### List of Songs Args(content):
+###### `pid` `int` `platform id`
+###### `id` `int` `song id(platform)`
+###### `name` `string` `name of song`
+###### `artists` `list` `list of artists`
+###### `album` `dict` `album of this song`
+###### `url` `string` `the media url of this song (source platform or system cache)`
+##### List of Artists Args:
+###### `id` `int` `artist id(platform)`
+###### `name` `string` `name of this artist`
+###### `cover` `string` `image url of this aritist`
+##### Album Args:
+###### `id` `int` `album id(platform)`
+###### `name` `string` `name of this album`
+###### `cover` `string` `image url of this album`
+#### After user clicking the confirm button, send request to this interface
+#### WebApi Interface Detail:
+##### Path: `/api/detail`
+##### Method: `POST`
+##### Args: 
+###### `platform` `int` `id of the platform`
+###### `id` `int` `id of the song`
+###### `date` `string` `YYYY-MM-DD`
+###### `token` `string` `user token`
+##### Response Format: `Json`
+##### Json Args: 
+###### `code` `int` `response code`
+
+## Back (Admin)
+
+### Access Page
\ No newline at end of file