Abstract: The present invention discloses a method and an apparatus for fusing a plurality of depth images. The method includes: obtaining N depth images collected by N image collection units, where N?2; obtaining a first foreground pixel of an ith depth image of the N depth images, where i?1 and i?N; obtaining N?1 projected points that correspond to the first foreground pixel and that are in depth images respectively collected by N?1 image collection units; and when depth values of a foreground three-dimensional space point in respective coordinate systems of the N?1 image collection units are greater than or equal to depth values of the respective N?1 projected points corresponding to the first foreground pixel, obtaining a three-dimensional point cloud by means of fusion.