To sell on AliExpress, you first need to register a seller account. Then, you need to select the products you want to sell and make sure they meet the regulations and requirements of AliExpress.

Next, you need to create a product listing, including information such as product description, price and pictures.

Then, you can use AliExpress's marketing tools to increase product exposure, such as coupons, promotions, etc.

Finally, you need to process orders, arrange shipments and provide customer service to ensure the smooth completion of transactions.