A power-supply starter apparatus for a capsule-type medical device that includes a container case internally retaining a capsule-type medical device having at least a intra-subject information acquiring unit and a power switch for switching power supply to each unit including the intra-subject information acquiring unit, and a starter that has a magnetic body and controls switching of the power supply by applying a magnetic field originating from the magnetic body to the power switch of the capsule-type medical device inside the container case, wherein the container case has an insertion/removal unit in which a space is formed where the magnetic body can be brought closer to the power switch and the starter is inserted/removed, and the insertion/removal unit and starter have a restriction unit for restricting rotation around an axis in an insertion/removal direction of the starter into/from the insertion/removal unit so that switching of the power supply is controlled only by an insertion/removal operation of the starter is provided.