The invention refers to both a machine and a method used to level, align and stabilise the track and compact the ballast bed, producing controlled lifting, so that the load used in the settlement of the rail in its theoretical position falls within the established range, working in an uninterrupted manner. In order to undertake this, the machine is constituted by two bogies with traction capacity (2), three control cabins: one at the front (3), one at the back (4) and one in the centre (5). There are two measuring tensioner trolleys, the rear one (10) and the frontal one (6). The machine has an additional lifting unit whose relative movement with the rest of the machine in controlled by the total longitudinal cylinder (11). The alignment cylinders (18) generate a transversal movement to cause track alignment. Behind this unit according to the direction of work (27) a stabilising unit is situated which consists of two stabilising trolleys (25 and 26). The ground-penetrating radar (28) is situated at the front of the machine. From this structuring of the machine, effective and precise levelling, alignment, compaction and stabilising of the track are achieved.