1. Open the browser and visit the watermelon video official website.

2. Click the "Login" button in the upper right corner of the watermelon video page.

3. In the login dialog box that pops up, you can choose different login methods, including mobile phone number login, password login, WeChat login, QQ login and third-party authorization. If you choose the mobile phone number to log in, you need to enter the mobile phone number to get the verification code. After entering the verification code, you can log in. If you are an old user, you can directly enter your account number and password to log in; If you are a new user, you may need to wait for the verification code to be sent, enter the verification code and log in.

4. If you choose WeChat login or QQ login, you need to click the corresponding login button and follow the prompts to authorize login.

5. After logging in successfully, you can use the service of Watermelon Video.