Abstract:The public goods related to our lives and production has been destroyed by the unexpected public crisis under the sudden natural disasters in China,which has influenced our entire national economy seriously.This paper analyses characteristics of changes in supply and demand of the public goods and reveals mechanism about the impact of the crisis on the supply of public goods.Finally,the paper brings forward a new supply model of of public goods which has been led by government within the multi-Center framework of government,the market and society.