In recent years, new technologies and applications such as cloud computing, big data, and artificial intelligence have flourished, and the Internet has been deeply integrated with all walks of life, thus changing all aspects of the country's economic and social life. In this context, the boundary between the real society and the network virtual space has become more and more blurred, and the social governance model has undergone tremendous changes. How to use big data and other scientific and technological means to promote social governance and make urban development and operation more intelligent, safe and reliable? At the 2nd Nanjing Think Tank Summit on Internet Big Data and Social Governance, the participants exchanged views. "With big data, urban governance is no longer a vague governance such as subjectivism and empiricism, and is moving towards accurate governance with accurate prediction and intelligent decision-making." Xu Zhifa, deputy director of the Institute of Industry and Planning of the China Academy of Information and Communications Technology, said. He believes that the construction of the "city brain" set off by many cities in China actually relies on urban big data. For example, in the management of urban traffic congestion, the travel efficiency is effectively improved by intelligently adjusting traffic lights through big data and installing sensors on vehicles. Chen Yong, director of the Publicity Department of the Nanjing Municipal Party Committee, introduced that Through the integration of resources, Nanjing has built a municipal affairs big data center, and the daily data exchange volume exceeds 100 million. At the same time, it integrates the service functions of 46 departments and units, provides more than 100 public services in a centralized manner, uses big data, blockchain and other technologies, deepens scientific and technological reform, and 80% of the city's 14,000 government services are handled online. "The governance we are talking about is co-construction, sharing and co-governance. It is hoped that through the Internet, it will be convenient for the government to serve the masses. Consumers are also expected to share governance structures through participation, because in the process, they are both users of data and contributors to data. Xiao Xue, senior vice president of Inspur Group, told reporters. Xie Guoming, member of the Social Construction Committee of the National People's Congress and former deputy editor-in-chief of the People's Daily, believes that the ultimate purpose of using big data is to make social governance more accurate and forward-looking, timely discover the needs of the people, promote scientific decision-making on social governance and refinement of governance methods, achieve better quality, more attention to details and more humane governance effects, and better meet the needs of the people for a better life. Qiu Guodong, inspector of the Central Cyberspace Administration's Network Comprehensive Coordination Management and Law Enforcement Supervision Bureau, pointed out that it is necessary to adhere to the rule of law and ensure that big data applications run on the track of rule of law. The implementation of the Cybersecurity Law has achieved a legal basis for the safe use of big data, but it is still necessary for the regulatory authorities to strengthen law enforcement and ensure the implementation of laws and regulations. It is necessary to adhere to the integrated promotion of technology, policies, rule of law, and supervision, coordinate the relationship between security and development, and provide guarantees for network security risk prevention, data flow supervision, and personal information protection. (Economic Daily reporter Chang Li)