Abstract: Based on the fact that the present way of "cracking down fake and inferior commodities" is limited, another way of preventing from the circulation controling fake and inferior commodities in the market circula- tion and then making manufacturers give up the idea of manufacturing it is brought forward. The relationship between dealers' behavior choices in the circulation of fake and inferior commodities and their utilities by building a game model is also analyzed and then the conclusion is given as follows: the better the reputation, the more the discount rate and the checking-rate, the less dealers will purchase and sell fake and inferior commodities.