The invention relates to the technical field of transformer noise reduction and shock absorption, in particular to a transformer noise reduction and shock absorption device which comprises a shell and a door plank, the front end of the shell is rotationally connected with the door plank, and the shell comprises a rectangular box, first sound absorption sponge, a sound transmission plate, a fixing column, a cylindrical spring, a guide column, a supporting plate, a rubber plate and an extrusion block. Through cooperation of the shell and the door plate, the transformer is positioned, when the transformer works, vibration generated when the transformer works is buffered so as to achieve the purpose of noise reduction and shock absorption, vibration force is decomposed while buffering is conducted, vibration borne by the shell is reduced, the service life of the shell is prolonged, and the shock absorption effect of the shell is improved; meanwhile, noise generated when the transformer works is absorbed, the noise generated when the transformer works is reduced, and in the noise reduction process, the noise makes contact with a sound absorption part and is absorbed by means of the reflection principle.