Abstract: A handling device (11) for well intervention, the handling device (11) being releasably connected, in an operative position, to a riser (13) and to a heave compensator (9) which is arranged to maintain a prescribed tensioning of the riser (13), the handling device (11) comprising: a lower riser securing device (19), a substantially vertical tensioning frame (15) provided with at least two parallel guides (17), a jacking table (21) provided with an upper riser securing device (23), at least one tension-resistant connection (31) between the tensioning frame (15) and the heave compensator (9) located thereabove, the jacking table (21) being movably connected to the at least two parallel guides (17), at least one of the at least two parallel guides (17) including means (47) for moving the jacking table (21) along the guides (17) in their, in the position of use, vertical extent, and the jacking table (21) including means (43, 45) for moving the upper riser securing device (23) in a horizontal direction