An optical disc device (2) includes: an optical pickup (4) including a first laser light source (10) that emits laser light, an objective lens (24) that focuses the laser light emitted from the first laser light source (10) onto an optical disc (8), and a light receiving element (30) that receives reflected light from the optical disc (8), and performs photoelectric conversion on the reflected light received to output a received-light signal; an FS signal generator (54) that generates an FS signal indicating the light amount of the reflected light from the optical disc (8), based on the received-light signal from the light receiving element (30); and a dirt determiner (56) that determines that dirt is present in the optical pickup (4), when the peak level of the FS signal is less than a dirt determination threshold, and controls the light receiving element (30) to increase the peak level of the received-light signal from the light receiving element (30).