Many foreign scholars randomly divided 62 cases of moderate asthma into exercise group and Control Group. The sports group adopted the medium intensity basketball training plan. At the end of the experiment, the PAQLQ score of the exercise group was significantly improved. Foreign scholars believe that moderate intensity basketball training program is helpful to improve the exercise ability and quality of life of children with asthma. Xu Mingjun and other scholars have studied the effect of basketball on middle-aged men’s sports ability and physique, and found that long-term basketball can improve middle-aged men’s lower limb strength, balance ability, reaction time and oxygen tolerance. Therefore, long-term physical exercise can maintain the physical and mental health of middle-aged men and exercise capacity, delay the level of physical function. To sum up, long-term appropriate intensity of basketball training can improve the functional level of young people, improve the physical quality and sports ability of junior high school students, help students develop interest in physical exercise from an early age, lay the foundation for life-long sports.