The specific content of 12 year compulsory education refers to the implementation of 12 year compulsory education by bringing high school education or preschool education into the scope of compulsory education. This measure has been tried in some areas of our country, but it is mainly concentrated in developed areas such as coastal areas and has not been widely promoted. The nine-year compulsory education in Yunnan has not been successfully completed, so the previous plan was stopped, and there is no official news about its re-implementation at present.