Abstract: In order to figure out the progress of Science, Technology and Innovation (STI) Policy Studies in China from an international perspective, this paper took an integrated scientometric analysis on both the STI Policy publications, the SciSIP programs in the United States, the SciREX programs in Japan, and the research projects granted by National Natural Science Foundation of China between 2011 and 2017. The Science of Science Policy in the United States aims to advance the scientific basis of science and innovation policy, while the Science of Science, Technology and Innovation Policy in Japan appears to take the science of STI policy into a framework of disciplines construction. The "Science of STI Policy" program consists of the following: 1) Preparation of a promoting system (Steering Committee) of "SciREX", 2) Promoting mission-oriented investigation and research, 3) Funding for R&D projects, 4) Foundation of hub institutions for fundamental researches and human resource development, and 5) Development of data and information infrastructure. The development of China's science of STI policy could consider the experiences from both US and Japan. We suggest to strengthen the interdisciplinary integrated STI policy studies between social sciences and natural sciences. It is necessary to initiative a specific STI policy R&D funding mechanism and a systematic communication mechanism between policy researchers and policy makers in China. We proposed that the data and information infrastructure act as a basic and strategic task in developing China’s Science of STI Policy.