GNWQ tear cutting sewage pump with reamer (hereinafter referred to as electric pump) is composed of three parts: water pump, seal and motor. The motor is located in the upper part of the electric pump and is a three-phase asynchronous motor. A double-sided mechanical seal is used between the pump and the motor, and an 'O' shaped oil-resistant rubber sealing ring is used for static sealing at each fixed stop seal. This series of electric pumps introduce and absorb foreign advanced technology, using spiral cutting leaves, efficient sewage discharge, novel and unique structure, its non-clogging performance is excellent, long fibres, plastic paper tapes, toilet towels, etc. can be cut and torn, can keep the water pump flow unimpeded, is an ideal sewage electric pump.