The study deals with the development of fundamental CAPP system for 3-D micromachining. Complicated 3-D microparts can be created by the development of multi-axis control ultraprecision machining centers. 3-D CAD/CAM systems for multi-axis control micromachining are also developed, which save time and labor to make numerical control date. However, operators have to plan the process empirically. The system developed in the study automatically decides the fixing surface and the number of control axis of multi-axis machining center, based on CAD data of the initial shape and the finished shape. The simulations by using various workpiece models show the validity of the system.