Disclosed is a stereoscopic image display device and a method for manufacturing the same, which facilitates to improve picture quality and to realize wide viewing angle and high luminance of stereoscopic images by improving crosstalk of left-eye image and right-eye image, wherein the stereoscopic image display device comprises a display panel including lower and upper substrates which are bonded to each other, and are provided with a left-eye displaying area (LDA) for displaying a left-eye image of stereoscopic image, and a right-eye displaying area (RDA) for displaying a right-eye image of stereoscopic image; a light-guiding member formed in the upper substrate and overlapped with an interface between the left-eye displaying area (LDA) and the right-eye displaying area (RDA); and an optical-axis changing member formed on the upper substrate, wherein the optical-axis changing member includes a left-eye retarder corresponding to the left-eye displaying area, and a right-eye retarder corresponding to the right-eye displaying area.