A multifunctional 3D scanning/printing apparatus is disclosed in the present invention, wherein the multifunctional apparatus comprises both 3D scanning and printing functions, by sharing a Digital Light Processing (DLP) projector or using a beam splitter (for example, a transflective mirror or a flipping mirror, etc.) to achieve a configuration for all sorts of 3D scanning and 3D printing equipment with the required elements within the same apparatus, and uses the accuracy-increasing apparatus (for example, a prism, a lenticular lens, other asymmetric lenses, etc.) so that the measurement accuracy from the two image sensors will not be restricted by the limited space.