The “one-step method” SFA model was used to empirically explore the technical efficiency of 603 family farms and its influencing factors,and analyze the relationship between different agricultural factor allocation modes and the technical efficiency of farms.The results show that:the input of land,labor force and capital has a significant effect on agricultural production,but the comprehensive technical efficiency of farm depends largely on the efficiency of capital scale; the average technical efficiency of the farm is 0.58 with a 42% loss; different agricultural factor allocation makes a difference in the change of farm technical efficiency; compared with no-land transfer households,land transfer households have higher management technology efficiency while compared with agricultural employment households,non-agricultural employment households have higher management technology efficiency; the farmer’s age and educational level have a significant negative effect on the technical efficiency of the farm; such strategies as setting production standards,creating trademark brands,establishing stable marketing channels and encouraging the farmers to plant cash crop,use new agricultural technologies and join farmers’ cooperatives have significantly improved the farm’s technical efficiency.Main conclusion:in order to further improve the efficiency of agricultural technology and factor allocation,we should accelerate the process of rural land circulation and marketization and promote the transfer of agricultural labor force to non-agricultural industries.Farm operators should also change their ideas and management methods to improve the level of farm management and agricultural technology efficiency.