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 i th 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. The method and the apparatus disclosed in the present invention resolve a problem that in a three-dimensional scene, a pixel offset occurs in a depth discontinuous location at which a foreground object borders a background object, and consequently a three-dimensional image finally formed is distorted.