To register for Alibaba Seller Edition, you first need to go to Alibaba's official website and click the "Free Registration" button.

Then fill in the relevant information, including company name, contact information, business scope, etc., and verify your mobile phone number.

Then create an account and log in to the Seller Center, complete the store information, upload products and prices, and set shipping costs and logistics methods.

Finally, submit for review and wait for approval before you can start selling products on Alibaba. Pay attention to complying with platform regulations, providing true and accurate information, and ensuring a good seller reputation.