diff --git a/autoload/SpaceVim/commands.vim b/autoload/SpaceVim/commands.vim
index 404505655..84c05804d 100644
--- a/autoload/SpaceVim/commands.vim
+++ b/autoload/SpaceVim/commands.vim
@@ -26,6 +26,11 @@ function! SpaceVim#commands#load() abort
   command! -nargs=*
         \ -complete=customlist,SpaceVim#commands#complete_SPConfig
         \ SPConfig call SpaceVim#commands#config(<f-args>)
+  ""
+  " Command for update plugin, support completion of plugin name.
+  " >
+  "     :SPUpdate vim-airline
+  " <
   command! -nargs=*
         \ -complete=custom,SpaceVim#commands#complete_plugin
         \ SPUpdate call SpaceVim#commands#update_plugin(<f-args>)
diff --git a/doc/SpaceVim.txt b/doc/SpaceVim.txt
index ca1126378..f61899bd3 100644
--- a/doc/SpaceVim.txt
+++ b/doc/SpaceVim.txt
@@ -328,6 +328,12 @@ COMMANDS                                                   *SpaceVim-commands*
     :SPConfig -g
 <
 
+:SPUpdate                                                          *:SPUpdate*
+  Command for update plugin, support completion of plugin name.
+>
+      :SPUpdate vim-airline
+<
+
 ==============================================================================
 FUNCTIONS                                                 *SpaceVim-functions*