Research on Cultural Tourism Product Development of “Impression Liu Sanjie” Based on the Law of Diminishing Marginal Utility

According to the law of diminishing marginal utility, utility when consumers purchase a certain product shows trend. As special product, cultural tourism products, whether is produced during consumption also affected by utility. This paper takes “Impression Liu Sanjie” as research object and uses linear regression equation model study tourists products. The results show that buying products an obvious decreasing main reason lack innovation strong brand characteristics, overall scale small, positioning not accurate, etc., competition homogenized in surrounding area, return rate low. Moreover, there gap between existing development trend high-end tourism, which cannot meet needs for indepth experience tourism. Therefore, intensify innovation, fundamentally solve problem further stabilize source repeated quality, realize sustainable development.