A CPU shock absorb device provided by the invention can greatly improve the shock absorbing and fixing effect of the CPU. By placing the device on the four corners of the CPU chip, a CPU chip is fixedon a CPU fixing frame or a CPU fix board, which can ensure the fixed shock absorption of CPU chip, the present invention utilizes an upper pressing assembly, a low elastic support assembly and a locking lever assembly are use for damping, simple and convenient, with shock absorbing capability in both up and down directions, at that same time, the arrangement of the guide slide fit, the precisionof the locking lever assembly to the CPU can be ensured, CPU chip are subjected to excessive stress due to improper compression force, as the connected guide seat and the lower support plate are madeof heat conductive material, the air holes arranged on the connecting guide seat and the lower support plate are densely arranged, so that the heat dissipation effect of the CPU can be ensured. The heat dissipation effect of the damping fixing mode is better than that of the conventional welding or hot glue fixing, and the damping effect is better, and the CPU is convenient to be cleaned and replaced.