The purpose of the study is to probe the relationship between motor skill learning and feedback of coach. The related studies showed that the role which coach play and the style of feedback, provide the huge influence toward the performance and the learning of motor skill. The feedback which provided by coach is the most important support for the athlete's learning effect of motor skill. Therefore, the coach need to provide the appropriate and concrete feedback toward the learning of motor skill. The related factors of feedback skill contain content, frequency, timing, scale and accuracy.