An apparatus and a method for rendering three-dimensional stereoscopic images are provided. The apparatus comprises a multi-view processor, an object device, a depth device, and a block filling device. The multi-view processor obtains depth related data of a first pixel and a second pixel which are adjacent to each other on the input image, calculates a difference between the depth related data and determines whether the first pixel and the second pixel are continuous according to the difference. The object device executes a process of object detection to output contour information. The depth device executes a process of object judgment to output distance information. The block filling device detects a hole region in each viewpoint image, searches a search region adjacent to the hole region for a number of original pixels, and fills the hole region.