A modelling and finishing machine for shoe forms comprising a rotating drive head (1) and a tailpin (2), a milling head (5) operable for modelling and finishing the external surface of the form, a first clamp (8) to clamp the form between the base of the heel and the rim of the neck; a second clamp (10) to clamp the form sideways at a distal position from the forefoot thereof; a second milling head with a cutting orientation substantially orthogonal to that of said first milling head and means for back off the sledges of the rotating drive head and of the tailpin disengaging them from the form at the end of the modelling, blocking the form in the same spatial position by means of said pair of mutually orthogonal clamps. At this point, the seam-like rearmost appendix is removed by the second milling head and the toe-like foremost appendix is removed by the first milling head.