The present invention provides a capsule-type medical apparatus and a method of manufacturing a capsule-type medical apparatus which can prevent a contact between a burr formed on an optical dome which is a part of a capsule-like casing and a living body in a subject. The capsule-type medical apparatus has a capsule-like casing which can be introduced inside the subject. The casing is configured with optically transparent optical domes and a cylindrical trunk member having an outer diameter dimension larger than an outer diameter dimension of the optical domes. The cylindrical trunk member is fitted onto an outer circumferential surface of the optical domes so as to cover each of the optical domes up to a portion near the burr formed thereon. The cylindrical trunk member has a step higher than the burr so as to prevent a contact between the burr and a living body in the subject.