The foaming agent is provided in closed spaces of the front portions of the side members which are located from around the front mounts mounted on the rear frame at one ends of the side members to foaming-agent filling openings formed at the middle portions of the side members which form the foam-disposed portions at the side members. The both ends of the front cross member are connected respectively to these foam-disposed portions of the side members.Accordingly, there can be provided the suspension cross member for an automotive vehicle, comprising the cross member and a pair of side members, which can improve the silent ride, stable maneuverability and impact absorption at the same time.