Anaerobic membrane bioreactor(AnMBRs)is a novel and efficient biotechnology for wastewater treatment.However,membrane fouling and high cost severely limits its industrial application.This review summarizes the research progress and technical properties of AnMBRs from the performance of AnMBRs,microbiological issues and AnMBRs modeling.It also addresses that certain efforts should be made to break the technical bottleneck during engineering practice and reduce the cost of the membranes.