Production mode is a pure macro concept with independence based on the combination of technical condition and social condition of production. Because the composition of productivity and production relation is closely related to technical condition and social condition of production, the change of production mode is caused by the change of any one of the two, i.e. both are determinants of production mode. Only because the technical composition of productivity is exogenous in Karl Marx’s analysis framework, can the formula “productivity-production mode-production relation” be derived, however, because the social composition itself of productivity is expressed by the form of production relation and is endogenous in Marx’s economic system, the change of production relation can also lead to the change of production mode, thus, the formula “productivity-production mode-production mode”should not be reused.