Based on the survey data of Changsba ,the paper analyzes the cognitive level,willingness to accept, willingness to pay and the actual purchase behavior for the agricultural products with safety certification of Changsha consumers,and also analyzes the related factors that influence these variables. The result shows:the consumers present a higher degree of concern for the quality and safety of agricultural products,but lower cognitive level and trust degree. The income level,cognitive level,education level,as well as trust in government have di...