Abstract: The development of family farm in China is based on the land contracting management and has achieved great progress in recent years. Agricultural production and operation system should be reformed and innovated, and the new type of agricultural management main body should be developed during the 13^th Five Year Plan. The scale development of family farm would be the focus of the academic research. The authors reviewed family farm researches from the aspects of concept and characteristics, and the necessity of family farm development in China was put forward. Based on scale effect, the similarities and differences of family farm scale researches both at home and abroad were compared, essential law of the development of family farm scale operation was explored with consideration to land circulation, and the development trend of family farm at home was discussed.