This paper presents a new methodology for the tracking maneuvermg targets by the means of bounding approach. A detectlOn scheme based on the dìstance between the centers of the feasible prediction set and observatlOn sequence IS employed for a prompt detectlOn of target maneuvers. A modified process n01se bound is used to match target maneuvermg. The algorithm effectively resolved the maneuvenng target tracking with state bounding approach Simulation results show the performance companson between Kalman filter and this algorithm.