The key of "Science of Science, Technology and Innovation Policy" is to connect policy formation and policy studies. Process and knowledge structure of policy formation is completely different from that of policy studies. The carrier developments of policy makers and researchers in Japan are also isolated. It is necessary to decompose knowledge of both policy formation and policy studies, and then reconstruct them for policy agenda. Its process is intellectual challenge for both parts of policy makers and researchers. The path to mutual understandings of both is not simple and consists of several steps: ignorance, dialogue, excessive expectations, repellency and mutual understanding. There are various activities of academic societies, government agencies and universities such as workshops and fellowships to connect policy makers and researchers. The most important is to talk each other directly and frankly after appropriate reviews in organizations and academic communities.