China has implemented the "633 academic system" for many years, that is, 6 years in primary school, 3 years in junior high school and 3 years in senior high school, and the first 9 years are compulsory education. Students enjoy the preferential policy of free tuition and book fees. Three years in junior high school is the key to decide whether they can transfer to senior high school to receive higher education. Therefore, it is suggested to change the academic system and increase the academic system of junior high school, so that students can have more time to study and increase the possibility of squeezing into high school.