The precise estimation and optimization of the driving range of electric vehicles is a key issue in the development of the new energy vehicle industry, which is influenced by multiple dimensions such as the driver's driving characteristics, battery states, environmental factors, and energy management strategies. This article takes AI algorithms as the core to explore their application in the field of electric vehicle driving range. It focuses on analyzing the impact of drivers' driving characteristics on driving range and AI modeling methods, sorts out the technological development of AI algorithms in driving range estimation, and elaborates on the practical application path through relevant cases. Finally, it looks forward to the challenges and future directions in this field, and provides a reference for the optimization of electric vehicle range technology.