摘要:Taking three counties in northern Jiangsu (Suining, Ganyu and Sihong) as the respondents, the economic principles of food safety issues of rural areas in northern Jiangsu are described from three aspects which are information asymmetry, food supply and food safety issue and food consumption and food safety issue. From the two aspects-adverse selection of consumers and opportunistic behaviors of producers, the paper introduces the influence of food safety issues of rural areas in northern Jiangsu are put forward; First, improve consumers’ knowledge of food safety; second. Normalize the behavior of main bodies of production and management; Third, improve the current situation of information asymmetry of food safety ; fourth, accelerate economic construction of rural area in northern Jiangsu, practical increase peasant income and living standard.