This concept originated from the goal of "double first-class" proposed by China Municipal Government, aiming at cultivating a number of world-class universities and disciplines and enhancing the overall level and international competitiveness of China's higher education. In order to achieve the goal of "two first-class disciplines", China government has taken a series of measures, including capital investment, talent introduction and scientific research support. Colleges and universities need to submit detailed development plans and implementation plans when applying for double first-class disciplines, and accept expert evaluation and audit. Evaluation criteria include teachers, scientific research achievements, academic reputation, international cooperation, etc. The construction of double first-class disciplines aims at promoting the development of disciplines, improving the quality of education, cultivating high-level talents and promoting academic research and scientific and technological innovation. It is of great significance to enhance the international influence and competitiveness of China's higher education.