The present invention provides a capsule type medical apparatus that can receive, in a subject, an external signal transmitted from an outside of the subject and transmitted via a conductor existing in the subject, including: a cover member that is formed of a dielectric and covers components of the capsule type medical apparatus; a plurality of electrodes that are formed of conductors, are provided in tight contact with an inner wall side of the cover member, and receive the external signal; an inductor circuit that is connected in series to each of the plurality of electrodes, and has an inductance value set to configure a resonant circuit having a frequency substantially equal to a carrier frequency of the external signal as a resonant frequency; and a signal receiving circuit to which the external signal received by the plurality of electrodes and a potential difference of the external signal are inputted.