Abstract: In this antical a reliability evaluation model of the wireless communication network security system based on pattern recognition technology is proposed. Firstly, the research progress of the reliability evaluation of wireless communication network security system is analyzed, and the limitations of various models are found. Then, the historical data of the reliability of wireless communication network security system are collected, and the change characteristics of the reliability of wireless communication network security system are characterized by the introduction of pattern recognition technology. Finally, the reliability evaluation model of wireless communication network security system is established Compared with the reliability evaluation model of wireless communication network security system, the results show that the accuracy of reliability evaluation of wireless communication network security system of this model is more than 95%, which is far beyond the practical application range of wireless communication. Moreover, the reliability evaluation efficiency of wireless communication network security system is high, and the better wireless communication network security system of other models is obtained The result of reliability evaluation has high practical value.