This UAV detection and countermeasure system integrates the functions of UAV identification, positioning, direction finding, neutralization and management in one. Based on technologies including spectrum sensing, message parsing and RID identification, it achieves the functions of early warning, identification, positioning and tracking of UAVs. By leveraging radio electronic countermeasure technology, it realizes the neutralization effects of repelling, forcing to land and decoying target UAVs. It is designed to protect key areas from UAV threats.