Provided is a capsule medical device guide system that allows a user to easily recognize that a capsule medical device is separated from a boundary of a liquid when the capsule medical device is guided in the liquid introduced into a subject. The capsule medical device guide system 1 includes: a magnetic field generating unit 25 configured to generate a magnetic field that guides a capsule endoscope 10； a position detecting unit 22 configured to detect a position of the capsule endoscope 10 to output positional information； a display unit 23 configured to display the position of the capsule endoscope 10 within the subject； and a control unit 26 configured to cause, based on the positional information, the display unit 23 to display the position of the capsule endoscope 10 within the subject and a boundary position of a range in which the capsule endoscope 10 is capable of being guided within the subject.
