This paper studies the application of vehicle-to-ground wireless communication technology in rail transit, especially the application of cable leakage technology and the design of the laying scheme. Firstly, the basic principle of vehicle-to-ground wireless communication technology is outlined, the application of cable leakage technology in rail transit is discussed, and the design of the cable leakage laying scheme is analyzed. Secondly, the on-site implementation strategies and optimization measures of the cable leakage laying scheme are discussed, aiming to improve the operation efficiency and quality. Finally, the future research directions are prospected, in order to provide reference for subsequent research, and provide theoretical support and practical guidance for the development of rail transit vehicle-to-ground wireless communication technology.