Abstract: A process and apparatus for controlling the deposition of roving by winding or by contact on large structures, in which deposition is carried out on a mandrel (1) driven in rotation about its axis (.theta.). A deposition head (6) is adjustable in position along at least a first rectilinear axis (X) of movement parallel to the axis of rotation (.theta.) of the mandrel. The head (6) is also movable along a second axis of rectangular displacement (Y) orthogonal to the axis of the mandrel. The axis of rotation (.theta.) of the mandrel is taken as a master axis and the other axes (X, Y, .beta., .gamma., 8, 9) are made subservient to the master axis. The master axis (.theta.) is controlled by speed orders according to a pre-established program and from a pre-established trajectory table (21). The slave axes are made subservient as a function of the angular position of the master axis, from the instantaneous angular position of the master axis (.theta.