The sewage submersible electric pump with cutting function is the most ideal sewage discharge equipment at present. Its characteristic is that a high-speed rotary cutting system is installed at the inlet of the pump, which can effectively cut off the long fibers and hard debris sucked in. It avoids the phenomenon of impeller being entangled and stuck, so that the pump can operate normally. It is suitable for public health places, industrial and mining and household sewage discharge. After being equipped with a float switch, the power supply can be automatically cut off as the temperature changes, ensuring the safety and reliability of the pump in a harsh environment.