Provided are a boundary display control device, a boundary display control method, and a program which can reduce an oppressive feeling of a user when a virtual object representing a boundary surface dividing a region in a real space in which the user is permitted to exist from a region in the real space in which the user is not permitted to exist is displayed. A program executing section (84) locates a position of the user wearing a head-mounted display. An approach portion identifying section (86) identifies, as an approach portion, a part of a boundary surface dividing a permitted region that is the region in the real space in which the user is permitted to exist from an unpermitted region that is the region in the real space in which the user is not permitted to exist, on the basis of the located position of the user. A display control section (92) causes the head-mounted display to display a virtual object representing the identified approach portion.