RTCP and non-RTCP function principles of five-axis machine tools were described,and the programming and processing mechanism of the dual-turntable five-axis machine were studied.The key parameters customization method of five-axis RTCP and non-RTCP post processing were studied through experiments,and the post processing program was built by using the NX post processing constructor.By using Vericut platform,the simulation machining of parts was carried out,and the machining results were analyzed and compared to verify the correctness of the proposed post-processor.The research results provide reference for relevant practitioners.