Abstract: This paper researched on the problem of the“the farmers hard to buy and sell”from the angle of circulation. Based on the analysis of the situation in supply and marketing of the agricultural products and rural circulation industry in Shanxi Province, using the causal analysis method to circulation of "hard to buy and sell" problem reasons were analyzed, and constructs the supply and demand model of the main bodies in the process of circulation of agricultural products; proposed and constructed the circulation service platform by rural service organization based on the supply and demand model dominated analyzed its operating mechanism.