Permanent magnet drive on-load tap-changing switch

A permanent magnet drive on-load tap-changing switch comprising a changing switch circuit. The changing switch circuit comprises an odd-numbered tap-changing circuit and an even-numbered tap-changing circuit that are structurally identical. The tap-changing circuits are constituted by working contactors, transition contactors, and transition resistors between both contactors. The working contactors and the transition contactors respectively correspond to a moving contactor (1). The moving contactors (1) are connected in parallel to each other. Permanent magnets (2) are fixed bijectively on the moving contactors (1). The permanent magnets (2) face directly at the other extremity thereof a moving contactor driving mechanism. The permanent magnet drive on-load tap-changing switch is structurally simple and convenient to use, obviates the need for a high-speed mechanism, implements changing by means of direct actions of the contactors, operates at high speed and reliably, and has a low failure rate, an extended service life, and value for widespread use.