diff --git a/docs/en-US/component/select-v2.md b/docs/en-US/component/select-v2.md
index 11f1a224d7..91142026a9 100644
--- a/docs/en-US/component/select-v2.md
+++ b/docs/en-US/component/select-v2.md
@@ -167,6 +167,7 @@ select-v2/use-valueKey
 | popper-options                      | Customized popper option see more at [popper.js](https://popper.js.org/docs/v2/)                                                         | object                             | -                                                                                                         | -             |
 | automatic-dropdown                  | for non-filterable Select, this prop decides if the option menu pops up when the input is focused                                        | boolean                            | -                                                                                                         | false         |
 | height                              | The height of the dropdown panel, 34px for each item                                                                                     | number                             | -                                                                                                         | 170           |
+| item-height                         | The height of the dropdown item                                                                                                          | number                             | -                                                                                                         | 34            |
 | scrollbar-always-on                 | Controls whether the scrollbar is always displayed                                                                                       | boolean                            | -                                                                                                         | false         |
 | remote                              | whether search data from server                                                                                                          | boolean                            | —                                                                                                         | false         |
 | remote-method                       | function that gets called when the input value changes. Its parameter is the current input value. To use this, `filterable` must be true | function(keyword: string)          | —                                                                                                         | —             |