Locus of control, the individual personality traits of one's acts and behavior are the consequences strengthened conviction. Different personality traits affect not only the individuals' attitudes to their work, but also their commitment and loyalty to the organizations and hence their job performance and the intention of resignation. This paper analyzes a large number of literatures at home and abroad, summarizes the definition, influencing factors and measurement tools of the locus of control, and predicts five development trends of future research.