The intelligent traction power supply system utilizes modern advanced technologies such as measurement, sensing, control, communication, information, and artificial intelligence. Based on intelligent traction power supply facilities and high-speed bidirectional communication networks, and characterized by informatization, networking, automation, and interactivity, it features holographic perception, multi-dimensional integration, self-healing reconstruction, and intelligent operation and maintenance. It is a power supply system that provides safe, reliable, efficient, and high-quality traction power for rail transit. At the same time, it is adaptable to the development of power electronics technology and the convenient integration of new energy sources. It consists of intelligent power supply and transformation facilities, an intelligent power supply dispatching system, an intelligent power supply operation and maintenance system, a flexible power supply structure and equipment, and a high-speed and secure communication network.