To set AliExpress to the Chinese version, all you need to do is click on the AliExpress official website, click "Login" in the upper right corner, enter your account and password, and click "Sign In" to log in to the store backend.

Then enter the seller backend, click the triangle icon in the upper right corner, and click "Language".

Choose Simplified Chinese and click "OK". At this time, the AliExpress interface will switch to the Chinese version.

However, in real operations, it is actually impossible to use Chinese entirely. It is recommended that you use translation software. At present, many merchants who do not understand English on AliExpress do this.