In a support device for a set of marching tenor drums arrayed in an arc shape of at least four drums, the device being held on the body of a player, two or three consecutive drums of the array, form at least one group. The device includes a holding mechanism for keeping the positions of the drums in each group constant relative to drums within the same group, and a turnable linking mechanism for linking the group and drums adjoining the group to be turnable relative to each other.