A remote operation-type surgery system is disclosed, which includes: a multiple-degree freedom slave arm; a first operation interface configured to operate the multiple-degree freedom slave arm; a second operation interface configured to operate the multiple-degree freedom slave arm; a third operation interface configured to operate the multiple-degree freedom slave arm and different from the first and second operation interfaces; and a controller configured to control the multiple-degree freedom slave arm, wherein the controller is configured to: determine whether or not an in-operation signal is turned on; until the in-operation signal is turned on, control the multiple-degree freedom slave arm so that the multiple-degree freedom slave arm is operated by at least one of the second operation interface and the third operation interface; and while the in-operation signal is turned on, control the multiple-degree freedom slave arm so that the multi-degree-of-freedom slave arm is operated by the first operation interface.