The invention discloses a combined vibration damping ballast bed meeting requirements of high-performance vibration damping of an urban mass transit. A combined vibration damping ballast bed main body is a packaging structure which is formed by stacking a prefabricated ballast bed plate, a vibration damping pad and a prefabricated base plate from top to bottom, the vibration damping pad, an elastic gumshoe and a water-stop belt are placed between the prefabricated ballast bed plate and the prefabricated base plate; the water-stop belt is paved along edges of the peripheries of the prefabricated ballast bed plate and the prefabricated base plate; after penetrating through a through groove of the vibration damping pad, the elastic gumshoe is connected between a boss structure of the prefabricated ballast bed plate and a groove structure of the prefabricated base plate; and a clamp is connected between outer side walls of the prefabricated ballast bed plate and the prefabricated base plate for fixed packaging. The combined vibration damping ballast bed can be prefabricated in factories, is convenient to assemble and disassemble, efficient in manufacturing and controllable in precision; vibration damping performance is easy to guarantee; maintenance and repair in an operation period and change of components are facilitated; and most of components are simple in structure, high in universality degree and moderate in cost, whole components can be recycled, and therefore, waste and pollution are avoided.