In Mobile ad-hoc network (MANETs) field, with the moving characteristic of nodes leading to the dynamic change in network topology, security patches can't rapidly spread in the network, thus not to study the virus propagation immuning to the Mobile ad-hoc network pulse. Considering the realistic feasibility of MANETs pulse immunization, MANETs virus transmition pulse immunization model was established. Based on the Impulsive Differential equation (Impulsive Differential Equations, IDE) stability theory, the MANETs virus propagation behavior under pulsed immune and the critical characteristics of infection denoting whether viruses die out were analyzed, as well as the existence, stablity of the system periodic solution of disease-free (diseases - free, DF), and the persistent existence of the Endemic diseases(Endemic, ED). With corresponding parameters selected, the numerical simulation was carried out upon the system, the experimental results of which validate the correctness and consistency of the conclusion .
