To sell courses on Douyin, you need to open the "Education and Training" category. To open this category, you need to provide relevant qualifications, such as education industry licenses, commercial business licenses, etc. At the same time, the course content must also comply with the regulations of the Douyin platform, cannot violate laws and regulations, and cannot involve vulgar, violent and other content. After registering an account on the platform, you need to go to the "Permission Application" page and select the "Education and Training" category to apply. The application requires filling in relevant information and uploading relevant supporting materials. The platform will review the qualifications and course content and then conduct an audit. The category can only be opened after the audit is passed. After opening the "Education and Training" category, you can publish and sell education-related courses, such as languages, programming, professional skills, etc. At the same time, you also need to follow the platform rules when publishing content to avoid problems such as account bans due to violations.