In the article,neural nerwork is used to solve the problem caused by Internet induced time delays in a telecontrol system. The author analyses the ingredient causing the time-delay, measures the time-delay practically, uses the Slide-mode and spline function principles for reference, and substitutes the normal Slide-mode inputs with the mean of the Slide-mode, then adopts the radial basis functions neural network setting up network time-delay model. The simulation results show that the 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 to the virtue of speediness and exactness, is capable of learn and predict the network time-delay on line,this gives a new idea in Internet-based remote closed-loop control.