Major changes have taken place in urban rail transit standards along with the reform of national standardization work. Timely establishment and maintenance of a standard system that meets the needs of the urban rail transit industry as well as the speed of development can create benefits to build an organic system that includes various types of standards in urban rail transit areas, and can thus improve the quality of standards, strengthen the influence of standards, promote technological innovation, and meet the needs of the urban rail transit industry’s continuous, healthy, and high-quality development. This study briefly investigates and analyzes the main body of the construction of an urban rail transit standard system, summarizes existing urban rail transit standard systems, and analyzes their applicability. We propose the technical route, working principles, goals, main construction content of the urban rail transit standard system, the application scope and structure of the urban rail transit industry standard system, and suggestions for key research and development areas. It is expected to actively promote China’s urban rail transit standards’ work, guide the development of the industry, promot the construction of a country with great strength in transportation and the construction of smart urban rail industry while occupying a more important position in the field of international circle of standardization.