Abstract: The iron &steel industry innovation process is characterized with taking the craft innovation as the forerunner, takingthe equipments innovation as the core and driving the steel &iron product innovationto continue innovation. TechnologyS-curve has become the core instrument for considering the technology innovation model. Firstly, theiron-making craft technology S-curve is elaborated, then the steel-making craft technologyS-curve is described, finally, the model of steel & iron process technology innovationin China during the period of the 11thfive-year plan is discussed. . 8 Refs In Chinese      

Key words: steel &, iron process technology, technology S-curve, model of technology innovation