diff --git a/autoload/SpaceVim/plugins/repl.vim b/autoload/SpaceVim/plugins/repl.vim
index 14f18f8ea..b211a1a6b 100644
--- a/autoload/SpaceVim/plugins/repl.vim
+++ b/autoload/SpaceVim/plugins/repl.vim
@@ -202,6 +202,7 @@ function! s:open_windows() abort
   setlocal buftype=nofile bufhidden=wipe nobuflisted nolist noswapfile nowrap cursorline nospell nonu norelativenumber winfixheight nomodifiable
   set filetype=SpaceVimREPL
   nnoremap <silent><buffer> q :call <SID>close()<cr>
+  nnoremap <silent><buffer> i :call <SID>insert()<cr>
   augroup spacevim_repl
     autocmd!
     autocmd BufWipeout <buffer> call <SID>close_repl()
@@ -210,3 +211,13 @@ function! s:open_windows() abort
   let s:winid = win_getid(winnr())
   wincmd p
 endfunction
+
+function! s:insert() abort
+  call inputsave()
+  let input = input('input >')
+  if !empty(input) && s:status.is_running == 1
+    call s:JOB.send(s:job_id, input)
+  endif
+  normal! :
+  call inputrestore()
+endfunction
diff --git a/docs/documentation.md b/docs/documentation.md
index e6f220883..c54f75a0d 100644
--- a/docs/documentation.md
+++ b/docs/documentation.md
@@ -88,7 +88,7 @@ description: "General documentation about how to use SpaceVim, including the qui
   - [Replace text with iedit](#replace-text-with-iedit)
     - [iedit states key bindings](#iedit-states-key-bindings)
   - [Code runner](#code-runner)
-  - [Read Eval Print Loop](#read-eval-print-loop)
+  - [REPL(read eval print loop)](#replread-eval-print-loop)
   - [Highlight current symbol](#highlight-current-symbol)
   - [Error handling](#error-handling)
   - [EditorConfig](#editorconfig)
@@ -571,7 +571,6 @@ In font transient state:
 | `-`           | decrease the font size    |
 | Any other key | leave the transient state |
 
-
 ### Mouse
 
 Mouse support is enabled in Normal mode and Visual mode by default.
@@ -954,7 +953,6 @@ If only one file buffer is opened, a file is opened in the active window, otherw
 | `s g`           | open file in a vertically split window   |
 | `s v`           | open file in a horizontally split window |
 
-
 #### Override filetree key bindings
 
 If you want to override the default key bindings in filetree windows. You can use User autocmd in bootstrap function. for examples:
@@ -2400,12 +2398,18 @@ Key bindings within code runner buffer:
 | `ctrl-c`    | stop code runner            |
 | `i`         | open promote to insert text |
 
-### Read Eval Print Loop
+### REPL(read eval print loop)
 
 The REPL(Read Eval Print Loop) plugin provides a framework to run REPL command asynchronously.
 
 For different language, you need to checkout the doc of language layer. The repl key bindings are defined in language layer.
 
+Key bindings within repl buffer:
+
+| key binding | description                 |
+| ----------- | --------------------------- |
+| `i`         | open promote to insert text |
+
 ### Highlight current symbol
 
 SpaceVim supports highlighting of the current symbol on demand and add a transient state to easily navigate and rename these symbols.