An object of the present invention is to facilitate at least 3 degrees-of-freedom motion of a capsule medical device inserted into a subject. An operating device (5) according to the present invention operates a capsule endoscope (2) with 6 degrees-of-freedom motion by using a magnetic field generator (3) with respect to the capsule endoscope (2) inserted into the subject. The operating device (5) comprises an operating unit (30) including a fixed unit (31) and a movable unit (32), and a force sensor (35) incorporated in the operating unit (30). The operating unit (30) has a three-dimensional shape substantially identical to the capsule endoscope (2) and is a holdable size. The force sensor detects force information of the movable unit (32) when the movable unit (32) of the operating unit (30) is operated once or continuously. The force information detected by the force sensor (35) is output as instruction information for instructing 6 degrees-of-freedom motion of the capsule endoscope (2).
