Abstract:The significant initiative of boosting high-quality agricultural development is the quality grading system for agricultural products.However,it fails to transmit quality signal in the process of consumers’ searching information.Using micro survey and choice experiment,double hurdle model and random parameter logit with error component model,this paper reveals the blocking mechanism for consumers making decisions using grading information of agricultural products from the perspective of information searching,and discusses the optimization path for the biased selection of grading attributes selection.The results show that consumers’ lack of knowledge about grading system,weak preference for grading attributes,and insufficient trust in the quality of grading agricultural products are the major factors that hinder consumers from using grading information of agricultural products and are also the reasons for the ineffective implementation of the grading system in consumer market.The adjustment of grading information transmission,the improvement of grading attributes selection,the modification of grading supervision pattern,and regarding consumer preferences as a fundamental basis for grading attributes selection are the appropriate pathways to effectively implement quality grading system for agricultural products,establish market order of high quality at good prices and promote high-quality agricultural development.