As outboard active centroid jamming has obvious effect on tracking and penetration of anti-ship missile, considering the process of anti-ship missile penetration and ship maneuvering, a dynamic model of attack-defense confrontation between anti-ship missile and ship outboard active centroid jamming is established by using the principle of outboard active decoy jamming, and a discrimination model of outboard active centroid jamming is designed.The maneuvering modes of anti-ship missiles at different incident angles are studied.Through simulation experiments, the tactical effects of different anti-ship missiles turn-on distances and incident angles against outboard active centroid jamming are analyzed, which has important reference significance for reasonably determining the specific parameters of anti-ship missiles terminal guidance radar.