Current research cared about if training of strategy and metacognition could improve the performance of study.98 Students were from Grade Two of Junior High School,half for training,half for control.Experimenters designed all programs of strategy and metacognition.Altogether there were 16 sessions training,5 for strategy,11 for metacognition.The results are as follow: Training does improve the performance of study of Geometry;There are effects of transferring on performance of Algebra and Physics;There is a significant effect of training just for students with average scores and poor scores,not those with good ones;Not only for male but also for female students,training effects are both real significant.