Abstract: The status quo of Chinese manufacturing industry is big but not strong, it makes our country at a disadvantage in the international system of labor division. As competition intensifies，the upgrading of manufacturing industry is imperative. By analyzing the effect in enhancing the international competitiveness of manufacturing industry upgrade and the pressure of foreign technological superiority and anfractuous internal and external economic environments it faced with，the author thinks that building a modern manufacturing system is the goal of Chinese manufacturing industry upgrading，then further puts forward the policy support system.