An important and urgent issue is to understand the effectiveness and potential risks of biometric recognition technology in urban management applications, and on this basis, explore a governance path that can, coordinately as an organism, use technology to empower urban management and regulate technological risks. This book systematically introduces the development status of biometric recognition technology and its application in urban management, and sorts out the potential risks of technology application; It summarizes the legal and policy system, the exploration governance and in judicial practice related to biometric recognition technology in China and all over the world; and it puts forward the idea of urban agile governance on the application of technology.