Abstract: Based on virtual prototyping technology, emergency braking dynamic model of a certain tracked vehicle was established by means of ADAMS/ATV software. By travel test and emergency braking test of the tracked vehicle, VV&A of the emergency braking dynamic model was carried out and its credence was proved. Using it as a simulation base, emergency braking dynamic simulation analysis of the tracked vehicle was carried out. The emergency braking dynamic responses at mean velocity of 3-6 gear were analyzed and braking characteristic curve was obtained by emergency braking simulation test.