For the existence of interference in network control system, by considering both error and error difference, a fuzzy self-adjusting PID controller based network control system is presented in this paper. In order to correspond with the practical requirements, according to the system error and error difference, the algorithm uses the principle of fuzzy to adjust PID parameters. Finally, True Time Toolbox is used to model the NCS which contains a fuzzy PID controller. we compared it with conventional PID controller. Simulation results show that, in comparison to the conventional PID controller, the proposed fuzzy PID controller provides better robustness and anti-jamming capability in the same bandwidth occupied network.