RBS are initials for Reactor Biodegradation System.It is an advanced technique which is used to treat highly concentrated organic wastewater in Japan.The organisms in wastewater can be removed by the biochemical effect of a kind of very active and compatible soil bacteria.It assures the treatment system runs efficiently and steadily because many active and nutritious materials in the RBS can be fed into the whole wastewater treatment system continuously during the process.The runnig results show that RBS is suitable for treating wastewater in cultivation field and food processing factories where the organism concentration is high and the water quality and quantity change greatly.Using RBS can not only ensure the outgoing water quality, but make “high efficiency and low consumption” realistic.It is worthy to be popularized .