The invention discloses a machine base for a turbo-generator. The machine base comprises a support plate, at least two elastic buffering assemblies and a base seat. The support plate is supported on abase seat through the elastic buffering assemblies which are spaced away from each other. Each elastic buffering assembly includes a connecting rod and an elastic part, and one end of the connectingrod is hinged on the support plate. The base seat includes an installation part which is provided with an accommodating chamber and an opening communicated with the accommodating chamber, the elasticpart is arranged in the accommodating chamber while one end of the elastic part is fixed in the accommodating chamber, and the other end of the elastic part is a free end which is in sliding contact with an inner wall of the accommodating chamber. The other end of the elastic part slides towards a surface of the support plate along the installation part, the other end of the connecting rod extendsinto the accommodating chamber via the opening and is in fixed connection with the free end. Via the machine base disclosed in a technical solution of the invention, loud noise caused by a conventional machine base for the turbo-generator can be solved.