A capsule endoscope (10) including a permanent magnet provided inside the capsule endoscope (10), the capsule endoscope (10) being configured to be introduced into a subject, a guiding magnetic field generating device (30) provided outside the subject, an operation input unit (43) configured to input an operation signal for changing a position or a posture of the capsule endoscope (10), and a guiding magnetic field controller (471) configured to: control the guiding magnetic field generating device (30), based on the operation signal input from the operation input unit (43) to change a magnetic field to change the position or the posture of the capsule endoscope (10); obtain control information indicating a control state for the guiding magnetic field generating device (30) before starting or when starting operation on the operation input unit (43); and control the guiding magnetic field generating device (30) by using the control information after the operation is finished are provided. According to this, a capsule medical device guidance system capable of improving responsiveness of the capsule medical device to the operation input is provided.