The experimental method of curved surface data reverse optimization global cutter path was introduced,and the control relationship between NC system and curved surface geometry data fusion was analyzed,and then a multidata fusion experimental platform for curved surface processing quality inspection and optimization was built.The results show that the experimental platform is used to process the geometric characteristics of the fiveaxis curved surface in intelligent multidirection,and the interpolation path is fed back to the servo control system and the digital testing system for dynamic tool path optimization and quality inspection.Online highspeed processing and highquality optimization of fiveaxis curved surface are realized.