A tail light device for a vehicle has a stop lamp (35), winkers (36) and a tail lamp (37) arranged in a common housing (38). A stop lamp reflector (45) has an inner surface for reflecting light from a light source (41) for a stop lamp (35), and a winker reflector (54) has an inner surface for reflecting light from a light source (48) for a winker (36). The stop lamp reflector (45) and the winker reflector (54) are attached to the housing (38) so as to be spaced apart from each other. Tail lamp reflection surfaces (62, 63) for reflecting light from the light source (57) for the tail lamp (37) are formed on outer surfaces of the stop lamp reflector (45) and the winker reflector (54).
