To provide a wheelchair fixing device capable of easily fixing a wheelchair and releasing the fixation inside a vehicle.

This wheelchair fixing device 3 is provided with a locking material 4 for locking the part 2a to be locked of the wheelchair 2, an electric motor M, a transmission means 6, and a control means 7 for electrically controlling the electric motor M. In this case, the locking material 4 is movable between a locking position to lock the part 2a to be locked of the wheelchair 2 and a releasing position to release the lock. The transmission means 6 receives the motion of the electric motor M and moves the locking material 4 between the locking position and the releasing position. Then, the control means 7 is provided with a switch unit 28. The switch unit 28 is provided with a locking switch 28a for moving the locking material 4 from the releasing position to the locking position and a releasing switch 28b for moving it from the locking position to the releasing position.