This paper discussed the CAD / CAM technology of the end face cylindrical cam. The processing of end face cylindrical cam which used in textile machinery was analyzed, and the Processing plan was determined. Three-dimensional modeling and NC programming were done by respectively using PRO/E software and CAXA manufacture engineer software, machining accuracy, fixture and other key technical problems in the end face cylinder cam CAD/CAM process were solved. Acceptable product was processed in common three coordinates milling machine, and ultimately used in enterprises, and achieved good results.