Abstract: Realtime telecontrol of mechanical dynamic information with the Internet is attempted. Telecontrol simulation system in this study incorporates the Internet transportation delay data measured by a test program and deals with the mechanical sampling information appropriately transported. So the impact of net delay and arithmetic of telecontrol can be compared conveniently with the same net environment. According to the simulation results, telecontrol of the mechanical system with Internet is feasible, if it adopts the suitable dynamic delay compensator. The effects of dynamic compensator rely on the accurate forecast of net delay and the exact object model. Proper study the of dynamic compensator is the key task in this telecontrol system.