The invention relates to a charging gun allowing forced power off. The charging gun comprises a gun body with an inner cavity, a plug, a lock piece, a wire harness, and a cable, wherein a plug sleeveis inserted in the gun body in a sliding manner, the plug sleeve and the gun body are in slide positioning connection through at least one ball plunger, an insert end of the plug sleeve has a plug hole, the gun body has the plug matched with the plug hole, the plug is inserted in the plug hole, the wire harness is in the inner cavity, one end of the wire harness is connected with the plug, the other end of the wire harness is connected with the plug, one end of the cable is connected with the plug hole, the plug and the gun body are connected in a rotating manner, a torsion spring is sheathedat the right of the plug, and two ends of the torsion spring are respectively connected with the gun body and the plug. The charging gun can be used normally when a vehicle is charged, and in emergency, it is ensured that the charging gun cuts off the power when being pulled and releases the vehicle safely.