A fuel pump installation area for a vehicle for enhancing the stiffness of the fuel pump built in a fuel tank and for enhancing the stiffness of an installation area of a tank installation stay on the fuel tank side. In a motorcycle in which a fuel tank is installed to the body frame and a fuel pump is provided within this fuel tank, the fuel pump is installed to the fuel tank via a pump installation member. To the pump installation member, a tank installation stay for fixing the fuel tank to the body frame is installed. The left and right side walls may be formed by depressing the center of the underside of the fuel tank upwardly over the front and the rear. Concave-shaped engaging members are installed by engaging left and right convex portions provided on the body frame with these engaging members, respectively.