Abstract: This article analyzes global patent data in the past 10 years through patent econometrics and text mining methods, and explores the trends of technological evolution, competitive landscape, and innovation directions. Research has found that vehicle road collaboration technology has evolved from basic communication protocols such as DSRC and C-V2X to intelligent fusion (AI dynamic path optimization); The development of AI decision-making technology has shifted from rule driven to end-to-end deep learning, and the combination of reinforcement learning and vehicle road collaboration has become a key breakthrough point. Future innovation directions include the application of large models (such as Transformers) in autonomous driving, vehicle road cloud collaborative enhanced learning, and AI driven intelligent energy management.