To keep a vehicle height in a simple structure in getting in/out and loading during stopping of a vehicle.

This vehicle height keeping device has a self pumping shock absorber 9 for increasing working fluid pressure during running of a vehicle and keeping the vehicle height at a height in an empty condition or higher during subsequent stopping. When the vehicle stops and a slide door 1 is opened, a cable 11 for a door and a cable 14 for a link mechanism move, the link mechanism 16 turns following the movement, a stopper 20 connected to the mechanism abuts on a bumper rubber 25 on a lower arm 8, and the lower arm 8 is regulated as a prop fro moving in a bounce direction of a rear wheel 7.