This paper deconstructs the modern economic system from four aspects: connotation, task, structure and characteristics. Based on the analysis of the initial stage, formation and growth stage and mature stage of the evolution about industrial green innovation system, the mechanism of industrial green innovation system promoting the construction of modern economic system is concluded. That is, the building of policy system is promoted by the regulation, incentive and macrocontrol policy of government departments, the interaction between enterprises and other subjects promote the construction of ...