To register with Alibaba, you first need to visit Alibaba's official website. Then, click the Register button and fill in the necessary personal or business information, such as username, password, contact information, etc.

Next, complete identity verification according to the prompts and choose the appropriate membership type, such as free membership or paid membership.

After completing the registration, you will get an Alibaba account and can start browsing and using Alibaba's various services, such as online shopping, supply chain management, etc. Remember to keep your account information safe for future login and management.