Production labeling is commonly used to convey specific information to customers. With distinctive labels, customers may make different choices due to different labels. Sometimes, consumers may be attracted by attractive introduction on the label, and they increase their willing to pay on this products, while sometimes consumers may decrease their willing to pay on some conventional products because there are some special description on the label. Producers could have a loss because consumers are supposed to lower their willing to pay on some products with conventional labels as well as new labels. In this paper, whether Genetically modified organism(GMO) or non-Genetically modified organism(non GMO) shown on the label of conventional agricultural products stigmatizes consumers’ willing to pay. Strawberries and apples are chosen as two groups of conventional products.