PURPOSE: To simplify panel constitution so as to improve formability and assemblage while heightening the supporting rigidity of a front suspension.

CONSTITUTION: A front member 6 and a rear member 7 are disposed vertically in internal contact at the front and rear corner parts CF, CR of a strut housing 1. The lower end parts of the front and rear members 6, 7 are jointed to a front side member 8, and the upper end parts are jointed to a food ledge upper member 9. A reinforcement 11 is jointed across the upper link fitting parts of the front member 6 and rear member 7, and a front wall and a rear wall to which the front and rear end parts of an upper link are journalled are formed into double panel structure.