Abstract: Certification of‘three products and one standard’（pollution-free agricultural products，green food，organic food，geographical indications）for agricultural products is an important work to ensure safety of edible agricultural products.It is also an important way to improve quality and safety of agricultural products.In addition，it is also conducive to improve level of agricultural organization，promote agricultural standardized production and enhance visibility of agricultural enterprises.Thus，the agricultural brand is started，the sale of agricultural products is driven.And it would increase production and efficiency of agricultural products.Therefore，It is of great significance for the public to do a good job in certification of‘three products and one standard’of agricultural products.