Sewage treatment device with sludge reduction characteristic

The utility model discloses a sewage treatment device with a sludge reduction characteristic. The sewage treatment device comprises a sewage reaction unit, an aeration tank and a filter membrane reaction tank which are sequentially communicated along the flowing direction of sewage, the sewage reaction unit is used for making an anoxic environment for entering sewage; the aeration tank is connected and communicated with the sewage reaction unit; the filter membrane reaction tank comprises an oxygen blower and a suction disinfection unit which are connected and communicated; the oxygen blower and the suction disinfection unit are both arranged outside the filter membrane reaction tank; the oxygen blower is used for supplying oxygen to the aeration tank and the filter membrane reaction tank for aerobic reaction; the suction disinfection unit is provided with a clear water outlet; the sewage treatment device further comprises an anaerobic sidestream reactor which is respectively connected and communicated with t