Abstract: Since its development and construction, the China railway ticketing and reservation system (referred to as the ticketing system) has undergone six major system upgrades and is the national key information infrastructure, capable of ticketing services with an annual passenger volume of 3.5 billion. In response to the core demand for high-quality development of railway passenger transport business, the ticketing system 7.0 optimized the overall architecture, network architecture, and logical architecture of the two locations and three centers based on the existing ticketing system, improved the network security protection system and R&D operation and maintenance system, enhanced the system's digital intelligence capability, supporting the safe and high-quality development of railway passenger transport business.