Abstract: Rural professional organization for economic cooperation is developing gradually under the background of new rural construction, and it is mainly in the forms of rural professional economic association and agricultural cooperatives. The characteristics of the non-profit and service is accorded with the inherent law of the Chinese agriculture development. This paper takes a representative fishery association as the research object, explores the effect degree of the rural professional organization for economic cooperation in rural economic development as well as conducts some thinking emerging in the development process.