Waste biomass of about 300 million ton is being discharged every year in Japan, and in addition, the emission quantity of CO2 has to be reduced for global warming prevention. In order to solve these problems, we studied about the recovery of biogas from waste biomass by methane fermentation, and by our technologies, a biomass-town had been constructed on Okimachi in Fukuoka Prefecture. We also focused our study on the production of bio-fuel ethanol from various biomass such as garbage, resource crops and cellulosic biomass (bamboo, corn stover), corporating with Sojo University and Peking University. Based on these achievements of ethanol production, the construction of a resource recycling-oriented city in Minamata area is being considered. Moreover, we aim to develop a zero emission process for the production of ethanol from agricultural waste straw and make it industrialize in China as well as other Asia countries