Purpose: Orbital defects will not only affect the vision function,but also affect the facial expression.The key and difficult points of orbital prosthesis fabricated are to restore the aesthetics.The register of the normal head position(NHP)and three-dimensional surface images taken by 3dMD face scanner is conclusive to the edge,location and precision of orbital prosthesis when using computer-aided design.A simple method for obtaining NHP will also shorten the fabricating time of orbital prosthesis.