In recent years, the effectiveness of monetary intermediate targets is not entirely as desired in China: based money controllability to reduce, the money multiplier and the velocity of circulation unstable and so on. In this paper, methodology is employed to testify the real impact of currency mismatch on the supply of money in China, the conclusion is: The supply of money doesn't suitable for the intermediate targets, the reason lies in the currency mismatch which our country exists. Finally, the paper put forward the related proposal.