To prevent the generation of noises without affecting other characteristics in a strut mount, by providing a pre-compressed and assembled rubber elastic body with the shape not separating from and abutted on a case body and a cover member even in the application of vertical vibrating load.

This strut mount structure is composed a case body 5, a cover member 7 for covering an opening side of the case body 5, and a rubber elastic body fixed to a core metal member 2 fixed to a rod of a shock absorber, the rubber elastic body 3 is provided with plural angle parts 33a, 33b wherein upper and lower rubber parts 3a, 3b of the core metal member are gently inclined to form top parts 31a, 31b at desired intervals in the circumferential direction, and connected through valley parts 32a, 32b, the angle parts 33a, 33b are oppositely abutted on the case body 5 and the cover member 7 from the top parts 31a, 31b, and pre-compressed, and the pre-compression is determined to prevent the rubber elastic body from being separated from the case body 5 and the cover member 7 even in the application of vertical vibrating load.