Quick anode dismounting method for underwater cathode protection

The invention discloses a quick anode dismounting method for underwater cathode protection. An anode, an array adsorption hole, an adjustable magnetic adsorption mechanism, an array conducting electrode mechanism and a cathode form a quick dismounting anode. In a connection mode, the anode, the adjustable magnetic adsorption mechanism, the array conducting electrode mechanism and the cathode are connected in turn. During mounting the anode, the anode leaves the array adsorption hole through the adjustable magnetic adsorption mechanism and is connected with the cathode together, and the array conducting electrode mechanism is adjusted so that the anode and the cathode form a conductive loop, the mounting of the anode is realized and the purpose of protecting a steel structural object is fulfilled. When the anode needs to be dismounted, the anode is retracted to the array adsorption hole through the adjustable magnetic adsorption mechanism and separated from the cathode so as to realize quick dismounting of the anode.