Abstract:In this paper, the authors proposed an indicator system for assessing science and technology (s t) supporting the transformation of China’s economic development mode from aspects of s t supporting factor structure recombination, industry structure upgrading and demand structure optimization, and then assessed the effect of s t supporting the transformation of China’s economic development mode from 2001 to 2010. The assessing results showed that the effect of s t supporting the transformation of China’s economic development mode became more and more significant, and was higher than the whole transformation of China’s economy. The s t promoted the factor structure recombination and demand structure optimization in recent 10 years; however, the effect of s t supporting industry structure upgrading became more weaken in recent 5 years, which was mainly attributed to the slowly development of high technology industry and Knowledge intensive business service, and this also had a significant impact on the invest and consume induced by s t.