This paper analyzes the change trend of R D input intensity in each province (city) of China, summarizes the change characteristics of different levels and stages in each region, and explores its evolution law. On this basis, the trend extrapolation method is used to predict the R D input intensity of each province (city) in 2030, which provides reference for the growth of R D investment in China and the prediction of the construction level of innovative country. The results show that the R D investment intensity in two-thirds of China"s regions lags behind the current level of industrialization; regions with R D investment intensity lower than 1% and more than 2.15% conform to the "general law of international R D intensity growth", but most regions between 1% and 2.15% do not have rapid growth; if provinces (cities) continue to increase R D investment, it is expected that two fifths of regions will have R D investment intensity higher than that in 2030 2.8%, which has laid a solid foundation for China to enter the forefront of innovative countries and the world"s leading country in science and technology.