Abstract:The improvement of technological innovation ability is a basic way to maintain industrial enterprises advantage in competition, and its indexes are important parameters to appraise the competitive position in their trade. Definition of technological innovation ability this paper sets up an evaluation index system of technological ability of industrial enterprises. Based on makes use of C2R on input and C2GS2 appraisal model which simply appraise effective technology, then empirical example is established to appraise the technological innovation ability of ten industrial enterprises in Harbin, and correlative information is obtained.