Provided are a guidance device, etc. capable of stably guiding a capsule medical device in a liquid and bringing same to a standstill regardless of individual differences in capsule medical devices. The guidance device (20) is equipped with a magnetic field-generating unit (25) for generating a magnetic field to act on a permanent magnet (18) provided in a capsule endoscope (10) and a guidance control section (261) for controlling the magnetic field generated by said magnetic field-generating unit (25). The guidance control section (261) executes control so as to be able to switch between: a first control mode for causing the magnetic field-generating unit (25) to generate a magnetic field that guides the capsule endoscope (10) in a direction to contact an upper or lower boundary surface of the liquid a second control mode for continuously changing the magnetic field generated by the magnetic field-generating unit (25) so that the capsule endoscope (10) shifts from a state of contact with said boundary surface to a state that is not in contact with said boundary surface and a third control mode for controlling the magnetic field generated by the magnetic field-generating unit (25) so that the capsule endoscope (10) is held in the liquid.Linvention concerne un dispositif de guidage, etc. capable de guider de manière stable un dispositif médical à capsule dans un liquide et de le mettre à larrêt, indépendamment des différences individuelles dans les dispositifs médicaux à capsule. Le dispositif de guidage (20) est équipé dune unité de génération de champ magnétique (25) pour générer un champ magnétique pour agir sur un aimant permanent (18) prévu dans un endoscope à capsule (10) et une section de commande de guidage (261) pour commander le champ magnétique généré par ladite unité de génération de champ magnétique (25). La section de commande de guidage (261) exécute une commande pour commuter entre : un premier mode de commande pour amener lunité de génération de cham
