The "9+3" project began in 2009, and on the basis of nine-year compulsory education, organized junior high school graduates and senior high school graduates from Tibetan areas to receive three-year free vocational education in the mainland, and then gradually expanded to Liangshan Yi area. Introduction of "9+3" related information: Enrolled students: recent and past graduates of the "9+3" free secondary vocational education program in Tibetan and Yi areas in the Mainland who meet the registration conditions for the general college entrance examination in Sichuan Province in 20 18. Enrollment method: the assessment method of "knowledge+skills (interview)" is adopted for individual enrollment, and "individual planning, individual proposition, individual assessment and individual admission" is implemented.