Abstract: The author described the situation and trends of the development of appropriate technology both at home and abroad.And proposed the concept of appropriate technology for our forestry,and a novel idea on the criterion of appropriate logging technology for the first time in our country. As the result of investigation of existing three different technological methods for production in the cutting chances and development,a new one appropriate for the operating condition in the northeastern forest region and new four kinds of machinery are recommended.That is cutting with power saw Model GJ85A,logging with wheeled tractor Model J-80 (or cable skidding with yarder Model SJ-23B) and loading with yarder Model HJ-3.As compared with old ones,the efficiency of cutting,logging and loading is 64% higher,the cost for per cubic meter is 0.98 Yuan lower and the consumption of fuel for per cubic meter is 0.34kg less. Experiments also demonstrated that the log stacker,the grapple type skidding device and wheeled loader we introduced from abroad are high in initial investment,high in energy consumption and low in economic effect.They do not match the local condition in our country and in our forest region,so they are not appropriate to be used at present.