Filtering membrane cleaning method

The invention discloses a filtering membrane cleaning method. The filtering membrane cleaning method is characterized in that a to-be-cleaned filtering membrane is placed in a liquid phase and subjected to liquid phase discharge through electrodes of a high-voltage pulsed power supply, so that corona discharge, glow discharge or streamer discharge occurs in the liquid phase; under the physical and chemical effect produced in the discharge process, substances blocking membrane holes are separated from the membrane holes, and the filtering membrane is cleaned. The filtering membrane can be efficiently cleaned, and membrane flux is rapidly recovered to realize membrane regeneration. The filtering membrane cleaning method has the advantages of short cleaning period, low cost and good effect.