目的　建立前牙冠桥修复体颜色的计算机辅助设计系统 ,旨在加强信息交流 ,提高修复体的美学质量。方法　采用数码相机采集图象 ;建立颜色样本库 ;运用基于三刺激值的相对比色法原理 ,应用人工神经网络技术自动匹配 ,从而进行修复体的颜色设计。结果　在该系统的支持下 ,医生、患者共同参与设计颜色 ,并提供材料及工艺处方。结论　实现了修复体颜色的计算机自动匹配和手动个性化设计。 Objective To establish a computer aided design system for the color of the anterior and crown bridge prostheses, aiming to enhance the exchange of information and improve the aesthetic quality of the prosthesis. Methods A digital camera was used to collect the images. A color sample library was established. The relative colorimetric method based on tristimulus values ​​was used to automatically match the artificial neural network to make the color design of the prosthesis. Results With the support of this system, doctors and patients participated in the design of colors and provided materials and process prescriptions. Conclusions A computerized automatic matching and manual personalization of the prosthesis color is achieved.