Disclosed is a circuit disconnection quick wire connector for a hydropower station. The wire connector is characterized by comprising a tight jacking cavity (01) and wire clamping apparatuses arranged on the two sides of the tight jacking cavity (01); the wire connector can be plugged and connected immediately; and by virtue of adoption of a connecting piece, disconnected wire connection or temporary wiring become more convenient and quicker by only needing to cut off the head of an electric wire and to enable the electric wire to extend to the connecting piece to be tightened, thereby greatly improving working efficiency and safety.