To log in to Alibaba, you need to open the official website of Alibaba first. Click the "Login" button in the upper right corner of the official website and enter your registered email and password to log in. If you are not registered, you can choose "Free Registration". After filling in the corresponding information, you will receive a verification code. After entering the verification code, your account will be successfully registered. After logging in, you can perform operations such as Taobao shopping, 1688 procurement, and Alipay transfers. Pay attention to protecting your account password and use a safe computer and network environment to protect the security of your personal information.