This article mainly research the role of interest rate rules in controlling prices and stable output.From theoretical analysis, that the central bank can through the implementation of interest rate rules to achieve economic equilibrium, as the interest rate rules of Taylor rule function.At the same time build a expectations and the state space model of interest rate smoothing factors, test analysis quarterly data from 2002 to 2011, the results show that our country interest rate rules to respond to economic variables.Therefore, this article put forward to improve fiscal revenue and expenditure, and improve the monetary policy regulation system, implementing differentiated interest rate structure and strengthen the communication with the public four Suggestions.