In order to explain the function of the strategy deterrence combining with evident and recessive ways, provide decision support for the strategy deterrence application, the mechanism of this strategy deterrence was studied with the signal game theory. The analysis framework based on incomplete information dynamic game was put forward, point out that that when the probability of the strong type was bigger than transmit probability, the deterrence move may be successful. And the evident and recessive ways can change the prior probability, the successful deterrence may come true. The results show that, by improving deterrence power, insisting on strategy deterrence determination, generate separation signal and change the opponent cognition, and realize the strategy deterrence.