The research examined closely the effects of motor learning according to post-KR delay interval 1, 5, 10, and 20 second. The experiment used the linear positioning task that find goal point 35㎝, and the group wes stratified sampling. KR provided the quantitative KR in ward. The result of post-KR delay interval study was not a meanful difference between 5, and 10 second’s group, nor was between 1, and 20 second’s group. And the effects of motor learning was 5, and 10 second’s group superior to 1, and 20 second’s group.