Based on the embeddedness of scientific and technological innovation network, Scientific and Technological Innovation Platform(S&T Innovation Platform) has gathered rich innovation resources and opened up network cooperation channels, but the economic benefits of scientific and technological achievements have not been fully exploited and realized, which restricts the collaborative mechanism of scientific and technological achievements feeding innovation. Therefore, based on the resource-based theory and capability theory, network embeddedness and signal transmission theory, this paper explores the path to improve the efficiency of scientific innovation platform from the perspective of network embeddedness. This paper puts forward the promotion mechanism with the ability of S&T Innovation Platform as the transmission path, and analyzes the characteristics of industrialization support policy and its influence. Through empirical research, it is found that the resources and network formed by S&T Innovation Platform have the effect of improving the efficiency of science and technology innovation on the whole, and the platform resource integration ability and utilization ability provide a transmission path for the efficiency improvement mechanism. At the same time, the research finds that the science and technology innovation policy, especially the industrialization support policy, which is committed to promoting innovation, has not played the expected positive role, but has shown an inverted U-shaped effect.