A bicycle carrier device for a vehicle may include a carrier portion provided on a lower side of a bumper back beam to slidably move in forward and backward directions to be drawn out from or accommodated in the bumper back beam, and provided with a panel portion and a sliding rail extending from both side ends of the panel portion in the forward and backward directions, an illumination plate disposed on the panel portion of the carrier portion to be rotatable in upward and downward directions and provided with a lamp mechanism that emits light toward the panel portion when being upwardly rotated, an extended support portion disposed on the carrier portion to extend and spread in both side directions of the carrier portion to carry a bicycle thereon, and an illumination mechanism disposed on the extended support portion and configured to move along with the extended support portion.