On the basis of analyzing immune system characteristics and similarity of multi-agent system

combine biological immune mechanism with intrusion detection technology

build a network intrusion detection model based on immune multi-agent

and introduce vaccine extraction and inoculation techniques to increase diversity of immune cells

and improve detection rate of system. Aiming at characteristics of clustering type wireless sensor networks（ WSNs）

the model adopts the hierarchical structure of the agent

different levels of agent respectively executes different detection tasks

analysis of simulation experimental results show that the system can effectively reduce energy consumption and prolong life cycle.