Abstract: As a kind of special real-time system，network motion control systems’ performance is closely related to the scheduling of the resource（processor，network）.It is necessary to use real-time scheduling theory in NMCS.Based on the status quo of research on the classical uniprocessor real-time scheduling algorithm（RM and EDF） and network scheduling，similarities and differences of network scheduling and CPU scheduling，network scheduling method and application technology are studied.Finally，the application of RM and EDF scheduling algorithm in NMCS，scheduling optimization and the application problem are simulated.