This work analyzes the development status of China's rail transit industry in the new era, explores the path of intelligent transportation construction, conducts in-depth research from the aspects of rail transit integration, "four-network integration" of rail transit, subway operation management, rail transit safety management, etc., identifies the existing problems, and puts forward corresponding solutions to provide references for the development of rail transit industry around the country. Promoting its high-quality development has a positive effect on improving the transportation capacity and improving the travel efficiency of the masses. At the same time, this work analyzes the application of artificial intelligence, big data, 5G and other new technologies in the development of rail transit industry, and expounds the effective path for the development of intelligent transportation, which drives the rail transit industry and rail transit equipment industry to achieve rapid growth in a jump, which is of great significance for improving the comprehensive strength of the city and the quality of public transportation service.