Abstract: ［Abstract］Objective To explore the effects of yoga on undergraduate physical function and quality. Methods 48 students in university were selected as the experimental objects with 12 weeks of exercise prescription intervention， including 24 students of experimental group with prescription intervention of yoga exercise and 24 students of control group with freedom movement of other sports. Before and after the experiment， the body quality and function indexes of students were detected and analyzed using the national physique health monitoring standards. Results Yoga exercise prescription intervention showed an obvious effect. After the intervention，the heart rate at rest， vital capacity and standing long jump were significantly higher than those before the intervention in the experimental group （P < 0.05）， and the other indexes were also significantly improved （P < 0.01）. Although the indexes in the control group were improved after intervention， there were no statistical differences. Conclusion Yoga has a significant influence on college students' physiological functions and can improve the physical quality significantly， which plays a positive role on the improvement of the college student's physical fitness.