To provide a head light tester that can be directly opposed to a headlight easily and surely.

The headlight tester comprises a condenser lens 3 for converging headlight beams in the front face of a case 1 movable in four directions, a screen 4 to which converged beams from the condenser lens 3 are projected in the case, and the camera such as the CCD camera 5 for detecting the image on the screen therein. Laser oscillators 6, 7 for irradiating with a plurality of laser beams from the side of the case to the headlight direction of an object to be tested are provided, and the irradiation directions of a plurality of the laser beams are intersected at the center position of the headlight when the headlight 2 is at a predetermined testing position.