A stereoscopic display apparatus that can perform a stereoscopic display using a right-eye image and a left-eye image acquired through radiography, includes image display means that can display a planar image of at least one of the right-eye image and the left-eye image as a planar display along with the stereoscopic display, display selecting means that selects any one of the stereoscopic display and the planar display, and position pointing means that can be operated in the selected stereoscopic display or planar display and that can be operated to interlock in the stereoscopic display and the planar display, wherein the position pointing means includes depth changing means that changes the depth thereof in the stereoscopic display.