Having analyzed The Neighborhood Effect ,this paper constructs a dynamic enterprise income model, and then analyze the regulation of behavior-spreading in scale-free networks, in order to conclude the effects of enterprise imitation behavior in scale-free networks, in terms of the standard of strategy changing, the paper analyzes the enterprise imitation behavior in scale-free networks from two perspectives, one is the biggest revenue among the income of surrounding neighborhood , the other is the average revenue of the surrounding neighborhood which happened in last game .