The invention discloses back-flush membrane filtering equipment with ultrasonic waves. The back-flush membrane filtering equipment with the ultrasonic waves emits the ultrasonic waves into a filteringbucket, impurities fall off from the surface of a filtering element through high-frequency vibration, heating is carried out through a heating pipe, chemical raw materials can be kept at high temperature, large blocks are not likely to be formed, the filtering effect can be effectively improved, and the blocking situation is not likely to happen.