Chinese Abstract：The traditional supervision method lead to high labor cost and low efficiency，which has lagged behind the development of the industry. Big data can collect industry data efficiently and comprehensively. Introducing “big data + supervision” mode can lead to panoramic supervision driven by technology. It can also clarify the essence and focus of the industry development，allowing the supervision to truly “catch up” with the technology and lay the foundation for the scientific decision-making of the regulatory layer. This report introduces the basic principles and technological development of big data，and analyzes the application and practice of big data in China’s regulatory science and technology with specific examples. At the same time，it analyzes the application prospects of big data in regulatory technology and puts forward relevant suggestions.