1. First, open the backstage of Meituan merchants, find the commodity management page, and select classified management.

2. Secondly, in the classification management page, find the classification that needs to be set up and down, and click Edit. In the editing page, find the category level option and click the up and down arrows to set it.

3. After the final setting is completed, click Save and Return to complete the upper and lower settings of the menu classification icon of Meituan.