The invention discloses a prediction method and a system for stereoscopic vision depth and relates to the field of image processing technology, which solves the absence problem of depth data in a depth conversion region due to the occlusion of sightlines in the prior art. According to the technical scheme of the invention, the prediction method for the stereoscopic vision depth comprises the steps of acquiring the image of a target scene and a stereoscopic vision depth image corresponding to the image; determining a depth data-free region in the stereoscopic vision depth image and a depth data-contained region related to the depth data-free region; according to the depth data of the depth data-contained region, determining the depth data of the depth data-free region. According to the technical scheme of the invention, the prediction method for stereoscopic vision depth can be used for predicting stereoscopic vision depth images.