The Quality of performance of Networked control system (NCS) depends on the quality of network service. To guarantee the limit of quality of network service of NCS, the mechanism of end-to-end rate control is applied to NCS. An novel end-to-end rate control scheme of guaranteeing minimal rate for each control loop of NCS is proposed. This scheme can guarantee to meet the requirements of quality of network service of NCS and show TCP friendly. Finally, the simulation results show that the proposed algorithm is effective.