The invention discloses an anti-reflection
semiconductor laser device which comprises a base, a tube tongue, a
heat sink, a
semiconductor laser chip, a tube pin and a tube cap. The tube tongue is arranged on the base, the
heat sink is fixed on the tube tongue, the
semiconductor laser chip is fixed on the
heat sink, the tube pin is fixed at the bottom of the base, the tube cap covers the base, and the tube cap comprises a tube shell and a light window; the tube tongue, the heat sink, the semiconductor laser
chip and the tube cap all adopt a partial or total anti-reflection structural design. Through structural optimization and
functional modification of core components such as the tube tongue, the heat sink, the semiconductor laser chip and the tube cap, all-directional and efficient suppression of primary reflection light of an optical element is achieved, the working stability of a device is remarkably improved, the service life of the device is remarkably prolonged, and the actual application requirements of the fields of sensing, display, communication and the like are met.