The invention discloses a permanent magnetic contactor operating mechanism provided with a tripping security device. The permanent magnetic contactor operating mechanism comprises a coil, a coil frame, a fixed iron core, a movable iron core, a permanent magnet, a magnetic yoke, a counterforce spring, a counterforce spring pressing sleeve and a counterforce spring outer cover, wherein the tripping security device is arranged between the movable iron core and the permanent magnet, and comprises an inner arc-shaped sleeve, an outer arc-shaped sleeve, a torsion spring, a torsion spring rotary shaft, a hinged rotary rod of the inner arc-shaped sleeve and a hinged rotary rod of the outer arc-shaped sleeve. With the adoption of the structure, the tripping security device is additionally arranged, stores energy in a normal attraction process of the movable iron core and the fixed iron core and releases the stored energy once the movable iron core and the fixed iron core cannot be separated through original coils after the movable iron core and the fixed iron core attract, so that the movable iron core and the fixed iron core are forcedly separated and the purpose of eliminating potential safety hazards is achieved.