In order to improve the realtime performance and control precision of corrugated crosscut machine, on the basis of AC servo control system mathematical modeling, because windows operating system had the shortcoming of weak realtime characteristics, the system “Windows+RTX” as the PC software operating platform was adopted. DSP as the target embedded system, data interaction by using dual port RAM, control system by using neuron PID algorithm, had the advantages of good selflearning ability, adjusting speed fast and small overshoot etc. The study showed that the control system had the advantage of high automation degree, high cutting precision and stable performance.