Base on the analysis of China s economic finance situation,we consider that in the period of changing,especially in the period of deflation,we should implement steady currency policy,The central bank should base on the changing of economic finance situation,set up price index forewarn interval,adjust and control the currency supply nimbly.

The currency value stability goals of China\'s monetary policy have double meaning of the domestic price stability and foreign exchange rate stability in theory.

Constant average social productivity of labour is the basis of historical cost measure attribute,constant money value stabilization is the basis of nominal moneytary measure unit.