To realize the tracking of maneuvering targets in the presence of long-range suppression jamming, the influence of long-range, high-power suppression jamming on radar detection and measurement accuracy is analyzed.A new measurement model is introduced to simulate the temporary disappearance of the targets caused by the decrease of detection probability of the radar in the presence of suppression jamming.The measurement in spherical coordinates is converted to measurement in right angle coordinates by using the decorrelated and unbiased measurement conversion method.Then, a maneuvering target tracking algorithm under suppression jamming on the radar is established based on the adaptive federal filter.The simulation results show that, the proposed method can maintain stable and accurate tracking of targets in a variety of maneuvering situations under long-range suppression jamming, which is obviously superior to the existing methods.