By employing flat membrane biological reactor of poly meta vinyl fluoride through monitoring different working conditions of water flow to study the pollution characteristics, the influence of working time, processing pressure and aeration condition to membrane pollution is explored. 采用聚偏氟乙烯平片膜生物反应器,通过测定不同运行条件下的水通量研究其污染特性,重点考察了运行时间、操作压力、曝气状况对膜污染的影响。