Abstract: A room lamp for a vehicle capable of being assembled without using an adhesive and provides a room lamp for a vehicle, which is fastened and assembled using a screw in a state in which an assembly hole formed in a room lamp plate is overlappingly placed on a through-hole formed in a head liner and a division protrusion formed in the room lamp is assembled to sequentially pass through the through-hole and the assembly hole, so that the room lamp can be easily and conveniently assembled or disassembled without using an adhesive and can be easily and conveniently assembled at a predetermined position as the division protrusion functions as a pin.