Aiming at the similarity of following control system and “guider” intelligent team formation, analyze the stability of following servo control system by (Input-to-State Stability ISS) and validate the performance of system controller. The following control system consists of active system and following system, and its following system follows the active system according to certain following model. The ISS relates the active system input to internal state of the following control system and characterizes the way this input affects the stable performance. The ISS that is used to analyze the stability of following control system, compared to other stability analysis that does not require attenuation of propagating error, and provides the bounds of stabile critical case. The experimentation result demonstrates that the system is stable based ISS controller. The running situation shows that under the controlling of controller, following system follows the active system according to certain following model and the following performance is improved based on the external boundary input of active system.