Malicious node detection and mitigation is a complex problem in Mobile ad hoc networks (MANETs) due to the similar characteristics with trusty nodes in sensing area. The objectives of this study are To design an efficient module for detecting and mitigating malicious nodes, To design a strategy to reduce energy consumption of the nodes in MANET network, To design a method for improving the Packet delivery ratio and throughput of the MANET system by eliminating the malicious node and link failures, To compare, analyze and validate a comprehensive system.for meeting the stated goals.