Abstract: A sequencing batch membrane bioreactor is provided, comprising a wastewater reservoir, at least one sequencing batch bioreactor, and a membrane reactor. The wastewater reservoir collects and stores wastewater. The sequencing batch bioreactor receives the wastewater in batches from the wastewater reservoir for performing a stirring and aeration process to remove ammonia-based nitrogen, phosphoric ions and organic substance from the wastewater. The membrane reactor is disposed outside of the sequencing batch bioreactor, wherein the wastewater is introduced from the sequencing batch bioreactor to the membrane reactor, treated with solid-liquid separation, and discharged.