Infrared induction photocontrolled automatic lighting switch

The utility model discloses an infrared induction optical controlling automatic lighting switch, comprising a case and a circuit board. An unthreaded hole, an infrared detecting hole and three terminals are arranged on the case, the circuit board is provided with a pyroelectric infrared detector head module, a time-based circuit module, a photoresistor, an audion, a thyristor, a resistance, a capacitor, a diode and a voltage-stabilizing tube and other electronic components. The utility model has the advantages that the switch can be closed automatically in the day, the lighting lamp can not be electrified even if someone appears, and the lighting lamp can be automatically switched on when someone appears in the night without vocalization, and the lighting lamp can be electrified with time delaying.