To provide a wheelchair fixing device capable of reducing a vibration in a lateral direction of a wheelchair.SOLUTION: A wheelchair fixing device is the device including wheelchair fixing parts 2A for fixing a wheelchair to a vehicle. The wheelchair fixing parts 2A fix a wheelchair by holding wheels 201 of a wheelchair from sides of the wheels 201, and pressing each one of the pair of right and left wheels 201 of a wheelchair from sides to an inner side of a wheelchair or pressing each one of the pair of right and left wheels 201 of a wheelchair from sides to an outer side of a wheelchair.SELECTED DRAWING: Figure 2【課題】車椅子の左右方向への振動を低減することが可能な車椅子固定装置を提供する。【解決手段】車椅子を車両に固定する車椅子固定部2Aを備える装置であって、車椅子固定部2Aは、車椅子の車輪201を当該車輪201の側方から挟み込む、車椅子の左右一対の車輪201のそれぞれを、側方から当該車椅子の内側へ押圧する、又は、車椅子の左右一対の車輪201のそれぞれを、側方から当該車椅子の外側へ押圧することによって、車椅子を固定する。【選択図】図2