The invention relates to a dynamic-static pressure damping supporting vibration attenuation system. The vibration attenuation system comprises an inner-layer bearing shell, an inner-layer tile block, an inner surface texture of the tile block, an outer-layer dynamic-static pressure tile body, an oil supply system and a dynamic-static pressure oil pressure control system, wherein the inner-layer tile block is fixedly arranged on the inner-layer bearing shell, and the inner surface of the inner-layer tile block is processed into the inner surface texture of the tile block; an inner-layer dynamic pressure lubricating oil film is formed between the inner-layer tile block and a rotating main shaft neck, and an outer-layer dynamic-static pressure lubricating oil film is formed between the inner-layer bearing shell and the outer-layer dynamic-static pressure tile body; lubricating oil is supplied to the inner-layer tile block and the outer-layer dynamic-static pressure tile body by the oil supply system, the dynamic-static pressure damping vibration attenuation is realized under the combined effect of the inner-layer dynamic pressure lubricating oil film and the outer-layer dynamic-static pressure oil film; the oil inlet pressure change of the oil supply system is controlled by the dynamic-static pressure oil pressure control system, so as to adjust the position of the inner-layer bearing shell in the outer-layer dynamic-static pressure tile body, so that the purposes of automatically controlling vibration of a rotating main shaft and performing the dynamic-static pressure damping supporting vibration attenuation are achieved.