Abstract: Ethics as code of conduct to regulate, guide and adjust development of things, it can regulate human the behavior, guide the regulative development of things, coordinate the relationship between people in practice activities. The practice of school physical education in China shows that it is difficult to completely solve many practical problems existing in school physical education, especially those about the value orientation and behavior exceedance. And the role and significance of ethics in school physical education is just that it can promote the correct values, regulate the behavior of related subjects and guide the regular development of school physical education. According to the ethical pursuit and the principle of school physical education, this paper analyzes the existing problems and the ethical parables behind those in our contemporary school physical education, and finds that there are still existing problems of deviating the ethical pursuit and the ethical principle such as students physical and mental separating development, humanity standard exile, partial loss of development justice, loss of integrity morality, tool rationality offside, lack of happiness acquisition. In order to curb beyond moral limen in school physical education, seeking breakthrough from the crack of the ideal and reality, and putting forward the should-be-what orientation of the dispelling of contemporary ethical problems in Chinese school physical education: converting to ought to be ethical pursuit, bridge partitions of the physical and mental development of the students; regressing humane nature of education, getting rid of the excess projection of education love; strengthening the development fair and education justice, promoting resource allocation fairness and balance; taking the value rationality to lead tools rationality, taking reasonable rationality to guide decision-making rationality; promoting the honesty consciousness and moral awareness, standardizing freedom and scale code of the moral choice; respecting life value of human, pursuing the realization of the happiness.