Some researches of social facilitation have been gradually formed since 1898 and developed some theories,such as dominant response theory,evaluation theory,distractionconflict theory,and so on. However,there exist some contradictions about these experimental studies,for understanding the effect of social facilitation on sport performance. By utilizing the metaanalysis,this article analyzes the issue. The results show that(1)the relation appeared a moderate effect(r=0.32)between social facilitation and skilled movements; (2) the relation is negative correlation between social facilitation and nonskilled action(r=-0.11). Meanwhile,the author analyzes the effect of personality on social facilitation and further explained the limitations.