An object of the present invention is to enable in-vivo images of a plurality of subjects received from a plurality of body-insertable apparatuses (capsule endoscopes) to be observed on one in-vivo image display apparatus (viewer). A viewer (6) as an in-vivo image display apparatus according to the present invention includes an image display unit. The image display unit has a first display area (61b1) available to display an in-vivo image obtained by a first capsule endoscope received from a first receiver A, and second display areas (61b2, 61b3) available to display in-vivo images obtained by second capsule endoscopes received from second receivers B and C different from the first receiver A. The viewer (6) displays a plurality of in-vivo images captured by the capsule endoscopes in the display areas (61b1 to 61b3), respectively. As a result, it is possible to locate and determine the position of the different capsule endoscopes.
