AUTOMOTIVE HYDROGEN STORAGE TANK SUPPORT SYSTEM

An automotive hydrogen storage tank support system for a vehicle includes: a floor; a pair of side sills mounted on lateral edges of the floor, respectively; and a support frame mounted on the floor and supporting a hydrogen storage tank The support frame includes a pair of longitudinal members, and a plurality of transverse members connecting the pair of longitudinal members to each other, at least one transverse member among the plurality of transverse members has a pair of extension portions respectively extending from opposite ends thereof toward the pair of side sills, and each extension portion is joined to a corresponding side sill of the pair of side sills.