Abstract: This paper analyzes the reasons for the implementation of compulsory physical education in schools and its new connotations in the context of educational equity with reference to the relations of compulsion, fairness and educational equity. The research suggests that compulsory physical education in schools is regarded as the means of governing physical education in modern schools, and is the guidance, supervision and inspection of educational freedom. It should take free sports as its theme, limited compulsion and equality as its principle, and the realization of physical education rights as its premise.The reasons for its application include the desire to break out of the chaotic period of multidimensional physical education in schools, the attempt to bring back the fundamental function of physical fitness from overgeneralization and fuzziness, a solution to the problem of continuous decline of students' physical condition, adoption of benefit-oriented talent teaching and growth, and the path to strengthen the validity of implementing current school sports policy. Compulsory physical education in schools in the context of educational equity include starting point compulsion, process compulsion and result compulsion. According to the degree of compulsion, it can be divided into basic compulsion, active compulsion and objective compulsion. Its aim is to promote the equality of physical education in schools.According to the operation procedure, the mandatory guarantee of equal rights and opportunities for the physical education in schools should be implemented first, then the school physical education result is forced to meet the standard, and finally mandatory constraints of conditions, rules and procedure fairness for school physical education are implemented..

Key words: Education equity, School sports, Starting point compulsion, Process compulsion, Result compulsion