With the rapid development of autonomous driving and intelligent transport systems,vehicle mounted LiDAR has become a key technology in this field. As a core component of autonomous driving,the efficient operation and accurate measurement of vehicle mounted LiDAR play a decisive role in the overall performance of the system. Firstly,the basic concept of vehicle mounted LiDAR and its structural characteristics are introduced. Then,the importance of various evaluation parameters and hardware parameters in evaluating the performance of vehicle mounted LiDAR systems and their specific impact on the system performance discusses are discussed in detail. And the research progress of various parameters is summarized,and finally a series of ideas on optimizing the performance of vehicle mounted LiDAR are concluded and the future development trend of vehicle mounted LiDAR is outlined.