Abstract:Strengthening the transformation of Sci. & Tech. achievements into productive forces is a key means for enterprises to achieve innovation-driven efficiency increment. The paper conducted research on the evaluation and assessment method to increase the transformation rate of Sci. & Tech. achievements within large state-owned enterprise group by means of data statistics, monitoring, evaluation and assessment from the group headquarter viewpoint, which includes the classification and definition of Sci. & Tech. research project, determining criteria of achievement transformation, differentiating achievement transformation targets among subsidiary enterprises, conducting continuous yearly evaluation and assessment, determining calculation method of subsidiary enterprises grading, etc. Nine years of application and practices of CNOOC group shows that the evaluation and assessment method can effectively promote ever increasing of Sci. & Tech. achievements transformation rate, enhances the consciousness of Sci. & Tech. achievements transformation and provides a benchmark for other large state-owned enterprise groups.