The purpose of this paper is to explore the connotation of sports moral character,positive and negative sports moral character,and the strategies to improve the negative sports moral character.This paper discusses positive moral behavior and negative moral behavior in sports competition by using file analysis method.The research results are as follows:1.Sports moral character includes sports character,sports spirit and sports morality,among which the core connotation of sports moral character is respect,obedience, justice,law-abiding, honesty,responsibility, courage, unity, hard work,cooperation and so on.2.Positive sporting qualities include the spirit of cooperation in the team,the courage to transcend oneself,the belief in fairness and justice, etc. 3.Violence,bribery,gambling,drug abuse and crime are all negative moral behavior. 4.The educational strategies to improve negative moral behavior can be adopted:6E teaching methods,such as model learning,enlightening thinking,exhortation and encouragement,environment shaping,experiential reflection and positive expectation.