A capsule medical device guidance system (301) according to the present invention, when switching a magnetic field generated by a magnetic field generator (2) from the peak magnetic field for trapping a capsule endoscope (1) at any position to the uniform gradient magnetic field having a substantially uniform magnetic field and forcing a permanent magnet of the capsule endoscope (1), causes the magnetic field condition storage unit (347) to store a generation position on the horizontal plane of the trapping magnetic field, and when switching a magnetic field generated by the magnetic field generator (2) from the gradient magnetic field to the trapping magnetic field, the causes the magnetic field generator to generate the trapping magnetic field at the position stored in the magnetic field condition storage unit (347).
