The Moral Productivity Theory put forward and reasoned by Mr. Wang Xiaoxi is said to be omnipotent, but in reality it is overstated. Those agreeing on the Moral Productivity Theory do not really understand the meaning of morality, nor understand that the maximization of personal interests conform to the objective law for the existence and development of any subject. It belongs to the “economic man” morality. Wang Xiaoxi’s Moral Productivity Theory is based on the misinterpretation of Marx’ theory of productivity. Expressions like “××productivity”by Marx mean that productivity includes a“××”factor. In this sense, it is not logical to deduce moral productivity and Moral Productivity Theory from Marx’ productivity concept as Wang Xiaoxo did.