The purpose of this study was to investigate how the peer interpersonal feedback strategy of cooperative learning affects the performance in basketball skills learning. We took 131 junior students of one university in Taoyuan County who selected basketball course as objects in this study and proceeded quasi-experimental designs lecturing with the division by class. We set the cooperative learning as experimental group and the traditional lecturing as control group. There were three levels; high, medium, low which were differentiated by the pre-test grades of basketball skills in both groups. The experimental lecturing included 2 periods in a week which was totally 100 minutes and eight-week of experimental lecturing was carried. We used the test of basketball skills as research tool and analyzed the collected data with descriptive statistics, T-test and One-Way ANOVA.1.The experimental group is significantly better than control group in dribbling skill, and reached the significance (t=3.79, p