By taking 581 employees in the enterprises in Chengdu, Chongqing and Kunming as research sample, the employees are divided into such two groups as the group with difference in wage difference and equity difference threshold and the group without the difference, this paper analyzes the impact of employees’ wage difference and equity difference threshold on distributive equity and task performance and the deviating behaviors in the group with difference and the group without the difference. The empirical results show that in the class of equity difference threshold （between general employees and grassroots managers, between general employees and middle managers, between general employees and general senior managers, between general employees and enterprises’ top leader）, the employees’ distributive equity either in the group with or without differences has significant difference. The employees’ distributive equity and task performance in the group without difference are significantly greater than that in the group with difference. In the class of equity difference threshold （among general employees in the same position, between general employees and grassroots managers, between general employees and general senior managers, between general employees and enterprises’ top leader）, the employees’ deviating behavior shows no significant difference in both the group with differences and the group without； The employees’ deviating behavior in the group without difference is significantly less than that in the group with difference. The Employees’ task performance demonstrates significant difference between the group with difference and the group without the difference. In the comparison between general employees, between general employees and grassroots managers, between general employees and general senior managers and between general employees and enterprise’s top leader, the employees’ deviating behaviors show significant difference between the group with difference and the group without the difference. Enterprises should scientifically test equity difference threshold of employees at different level and rationally design wage difference.