In recent years，digital twin technology has matured and found wide application across multiple industries. With the proliferation of new energy vehicles，China’s vehicle population has rapidly grown，posing significant challenges to traffic governance. Traditional methods have struggled to adapt to these changes，making the adoption of new technologies like AI and digital twins，along with expanding application scenarios，an inevitable trend. Digital twins have already had a substantial impact on transportation modes，organization of transportation elements，and traffic governance，breaking down barriers and enhancing efficiency. This research aims to analyze the intersection of digital twin technology and traffic governance，exploring its applications and future trends.