A capsule medical apparatus 2 according to the present invention includes, as function execution units, an imaging unit 21, an illumination unit 22, a wireless communication unit 23, a power source unit 25, a control unit 26, and the like, each of those units is arranged at an appropriate position within a capsule casing 27. A solid adjusting member 11 is housed in the capsule casing 27 to adjust a weight as a physical parameter which determines a density of the capsule medical apparatus 2 to a target range set in advance. Therefore, it is possible to provide the capsule medical apparatus capable of suppressing a variation in the density.
