Abstract: The pretending of the military objects is the important ensuring contents,and an action of the battle.Using the thoughts of systems theories and the theory of random process,the paper designs calculating formulas of the existence probabilities on the concealing real objects and showing false objects,and constructs the Markov model of the survival probabilities of the military objects when they are attacked.So,the model proposes an effective method that can reasonably estimate the survival probabilities of the military objects during the battle.In addition,the model provides a good basis to research the problems.

Key words: military objects, effect of pretending, showing the false objects and pretending the real objects, military objects