In the competitive market of end products, customers demonstrate a certain degree of loyalty; but more often than they do not choose from among the competing brands on a random basis.The consideration for innovative diffusion required of an enterprise in deciding whether to develop its own new products or to wait to imitate other enterprises' new products makes the game analysis more complicated.This paper records a research into the profit and the profit equilibrium in the light of the two strategies under the condition of Bass innovative diffusion and focuses on analyzing the dynamic game in the context of complete information.Moreover, the approach to the study of the game between product development and product imitation in the context of incomplete information has also been studied in this paper.