In order to solve a ser ies of problems in the traditional teaching methods and explore the practical application effect of the sub-classroom in the public sports basketball class teaching. This paper uses the literature method and the experimental method to investigate the students in the basketball elective course, and analyzes the results according to the survey, which clarifies the purpose and function of the class. Through the three-stage mode of "teaching","internalization" and "absorption" of the sub-classroom mode, a teaching experiment was conducted on 124 college students in a freshm...