A structure for fastening a battery to a vehicle includes: a carrier part including a pair of first members that is disposed at a lower portion of the vehicle in a longitudinal direction of the vehicle and bonded to both sides of a vehicle body, respectively, and a plurality of second members the pair of first members in contact with the pair of first members; and a battery having a case that houses a plurality of battery cells, in which a part of the case is connected to the first member, and the other part of the case is connected to the second member.