This medicine filling device, which is used when filling a solid medicine into a medicine vessel, is provided with: a medicine housing section that houses a medicine and has a plurality of medicine discharge openings that discharge the housed medicine; a rotor that is positioned within the medicine housing, has a plurality of temporary medicine housing sections that temporarily house the medicine, and by means of rotating, causes the movement of the medicine housed in the plurality of temporary medicine housing sections to the plurality of medicine discharge openings; a medicine guide section that guides the medicine discharged from the plurality of medicine discharge openings to the medicine vessel; and a drive unit that drives the rotation of the rotor.