Abstract: The development and growth power of potato industry is originated from benefit drive,only when industry can bring about stable and considerable income, industrial subjects have the willingness and enthusiasm of working in the industry chain.The income of production,circulation and process in potato industry chain are unbalanced through comparative analysis using theory of industrial economics,which showing ＂large in the middle small at the two extremes＂features. Therefore, from the perspective of industry development and farmers＇ income,not only to find ways to increase the income of all sectors,but also to balance different aspects of income distribution,in order to achieve coordinated and healthy development of the industry.