To provide a shock absorber structure capable of enhancing occupant protection performance against an offset collision or its equivalent.

The shape of an outer cylinder 12 of a shock absorber 10 arranged at the inner side of a front wheel 38 is formed into an elliptical shape and a weak main shaft Q is arranged to be inclined to the inner side of a vehicle rear side. Therefore, when an opponent vehicle 44 and an own vehicle 42 offset-collide with each other and a large collision load is inputted from a front side member 46 of the opponent vehicle 44 to the shock absorber 10, the outer cylinder 12 of the shock absorber 10 is bent to the inner side of the vehicle rear side and a reaction force F to the outside of the vehicle front is simultaneously given to the opponent vehicle 44. As a result, the opponent vehicle 44 can be made to pass though sideways.