The development of radio science plays an extremely important role in supporting today’s ICT society toward Society 5.0 (Japan’s new blueprint for a super-smart society) through the use of advanced wireless communication technology. It also significantly contributes to achieving the Sustainable Development Goals (SDGs) from the perspective of using radio waves to monitor the global environment (climate, ocean, land) and to promote disaster risk management. In the conference, state-of-the-art research results in this field will be presented and discussed by prominent scientists and engineers as well as by young researchers including students, which will lead to the significant advance of radio science research worldwide.