Currently, Network worm has become one of the major threats to internet, Contrary to the deficiencies in propagation model and defense technologies of Network worm. In order to improve the lack of propagation laws and propagation model of the existing network benign worm, proposed network benign worms model based on a hybrid mechanism, Established the mathematical model of communication, through analysis, the model can quickly suppress the vicious network worm propagation, and destroy the vicious worm in a short time. Finally, using the method of packet-level simulation software, the experimental results show that the model can reduce the consumption of network resources, improve network utilization and the overall performance of the network.