PROBLEM TO BE SOLVED: To provide a wheelchair fixing device for a vehicle that does not become an obstacle to a passage in the vehicle when not in use, can be fixed through easy work in a short time when in use, and can alleviate a burden on a wheelchair user and a helper.SOLUTION: A wheelchair fixing device comprises: a wheelchair (10) including front legs (11a and 11b) and rear legs (12a and 12b) a front fixing mechanism (21) including a front connecting member (33) in which one end is fixed to a side wall (1a) of a vehicle (1) and another end is engaged with the front leg (11a) of the wheelchair and a rear fixing mechanism (22) including a floor surface engaging part (45) provided on a floor surface of the vehicle (1) and a rear connecting member (40) in which one end is fixed to the side wall (1a) of the vehicle (1), another end is engaged with the floor surface engaging part (45), and an intermediate portion is engaged with the rear legs (12a and 12b) of the wheelchair.
