The mountainous countryside economic development cannot do without the innovation of the agricultural operation organizations system, can＆#39;t do without the cultivating new type of agricultural management main body, can not be separated from the development of farmers＆#39; professional cooperative organizations. This paper chooses the typical mountainous agricultural county, Huidong in Liangshan Yi autonomous prefecture, as the research objecting, adopt empirical research method, from the perspective of the county economy, analyzes large agricultural county farmers＆#39; professional co-operatives development reality, the main problem, on the basis of this puts forward countermeasures and suggestions.