National Engineering Laboratory was led by Traffic Control Technology Co., Ltd and jointly constructed in the “collaborative innovation mode of "government, industry, university, research and application" by Beijing Jiaotong University, Beijing Municipal Rail Transit Construction Management Co., Ltd. and Beijing Subway Rolling Stock Equipment Co., Ltd. In order to solve the problems of CBTC system of urban rail transit in China such as low continuous improvement capacity in reliability, availability, maintainability and low degree of intelligence, four construction units gave full play to their advantages under the guidance of the national government and Beijing Municipal Commission of Development and Reform as well as the support of China Association of Metros and other units. building the National Engineering Laboratory into an advanced technical research, development and innovation platform, upstream/downstream innovative subject test and verification service platform, scientific and technological achievements transformation and demonstration platform and talent innovation and cultivation platform in the field of rail transit train control and has made a series of achievements.