How is the long-term implementation effect of Labor Contract Law? Academic circle's research on this topic is relatively weak. By means of statistical analysis of 2568 samples of "world factory" Dongguan's three subjects of laborer, enterprise and labor dispute mediator, this paper draws lessons from three person social theory, comes to the conclusions: at the same time of increasing the labor costs, restraining the flexibility of enterprise employment, leading to withdraw investment and decreasing jobs to some degree, Labor Contract Law increased the labor contract signing rate, extended the labor contract period, but did not increase the unfixed-term labor contract signing rate and did not archive the goal of stabling labor relations as well.