The invention belongs to the technical field of vibration noise control and particularly relates to a vibration absorber. According to the technical scheme of the membrane type vibration absorber with the frequency adjustable, a support rod is sequentially sleeved with flat washers, a lower layer outer washer, a lower layer membrane, a lower layer inner washer and a lower quality block, and the flat washers, the lower layer outer washer, the lower layer membrane, the lower layer inner washer and the lower quality block are fastened through a first screw. A frequency adjusting component, an upper quality block and an upper layer inner washer are sequentially arranged above the lower quality block. The lower quality block, the frequency adjusting component and the upper quality block form a quality component with the frequency adjustable. The support rod is sequentially sleeved with a support pillar and a certain number of flat washers and support pieces according to the height of the quality component. An upper layer membrane and an upper layer washer are sequentially arranged above the upper layer inner washer, and an upper layer outer washer, the upper layer membrane, the upper layer inner washer and the quality component are fastened through a second screw. The support rod is sequentially sleeved with the flat washers and a spring washer, and the flat washers and the spring washer are fastened through a nut. The membrane type vibration absorber is capable of adjusting the frequency precisely.