Abstract : The phase 1 of the SPIRAL2 facility, extension project of the GANIL laboratory, is under construction. The accelerator is based on a linear solution,mainly composed of a normal conducting RFQ and a superconducting linac. One of its specificities is to be designed to accelerate high power deuteron and heavy ion beams (40-200kW), and mediumintensity heavy ion beams as well (a few kW). The associatedMachine Protection System, has thus to be able to control and protect the accelerator for a very large range in terms of beam intensities and beam powers. This paper presents the technical solutions chosen for this system and the present status of its construction.