Abstract: Realtime telecontrol of mechanical dynamic information with the Internet is attempted.The author analyses the ingredient causingthe time-delay, measures the time-delay practically, uses the Slide-mode and spline func-tion principles for reference, and substitutes the normal Slide-mode inputswith the mean of the Slide-mode, then adoptsthe RBF (radial basis functions) neural network setting up network time-delay model.The simulation results show thatthe model can effectively substitute the actual network in Internet-based closed loop control system research under time-delay condition;the methods used in the modeling, due tothe virtue of speediness and exactness, is capable of learn andpredict the network time-delay on line, this gives a new idea in Internleet-based remote closed-loop control.