There is still a large gap to fill for Japan’s renewable energy development，considering its huge potential and Japan’s advanced manufacturing and technologic capacity for related equipment. Solar energy plays a leading role in Japan’s renewable energy industry，while the development and utilization of wind power lagging behind relatively，the share of biomass energy in primary energy supply being far below the world average level，and the geothermal energy，ocean energy and other renewable resources remaining to be exploited. Regarded as a model in energy efficiency，Japan remains at the average level of the world in utilizing the renewable energy，however，it can be predicted that Japan will reach the advanced level with accelerating the development in the renewable energy in the coming decade.