In China,the dual economies show prominence in financial field.It leads to the serious dual credit ration and becomes one of the main cause which makes financing in medium & small sized enterprises becomes harder and harder.On basis of this situation,we theoretically pose that we can alleviate the difficulty through the dual cooperation of financial control and the deepening of finance. In China, the dual economies show prominence in the financial field. It leads to the serious dual credit ration and becomes one of the main cause which makes financing in medium & small sized enterprises becomes harder and harder. On the basis of this situation, we theoretically pose that we can alleviate the difficulty through the dual cooperation of financial control and the deepening of finance.