Abstract: The efficient development of the Chinese forestry is to achieve ecological,economic and social sustainable development.In order to develop forestry,the Chinese government investment remains high.Based on international comparative perspective,this paper uses the comparative analysis method to analyze the Sino-US forestry input-output characteristics and the Sino-US forestry input-output efficiency.The results show that compared to the U.S.,the use efficiency of Chinese woodland is low,and the economic efficiency of forest land is low;the ecological efficiency of Chinese central forestry funds is high,but the economic efficiency of central forestry funds is low;the ecological efficiency of Chinese central forestry workforce is high,but the economic efficiency of Chinese central forestry workforce is low.Based on the conclusions,this paper makes relevant policy recommendations and discusses some existing deficiencies.

Key words: forestry input, forestry output, ecological efficiency, economic efficiency, comparative analysis