Security threats to wireless networks are becoming increasingly prominent, and during data transmission, various network attacks and information leakage issues are becoming increasingly prominent. This paper, therefore, offers a wireless network security monitoring and communication transmission system developed through the use of Internet of Things technology to increase the security of wireless networks and improve data transmission reliability. First, a security monitoring platform is being set up, involving a real-time packet traffic analysis via DPI (Deep Packet Inspection) technology, where SVM (Support Vector Machines) will be used to identify abnormalities in behavior. The various security approaches are then incorporated into the system to ensure information dissemination’s security, including data encryption, identity authentication, and access control. Hence, experiments revealed that the system went below 5% levels of false alarms and decreased information transmission delay times to 55 ms after optimization. Thus, the system greatly improves the security monitoring capability of wireless networks and presents effective solutions to protect information security within the IoT environment.