Abstract: Informationization is the core force to promote the government to change the way of governance.The informationization of government affairs in China has experienced the development of e-government,digital government,data governance and digital governance.At present,digital governance is the core mode for our government to promote social governance.Based on the development context and basic connotation of digital governance,the current digital governance mainly covers three core tasks and development logic,namely,"Internet + government affairs","big datagovernance" and "big data decision-making".Combined with the practice of "one network communication office" and "one network unified management" in Shanghai,"Internet + government affairs" can be divided into two aspects:"Internet + government affairs service" and "Internet + urban governance".Among these core tasks,"Internet + government affairs" emphasizes service orientation,pluralistic cooperation,data processing and platform sharing,"big data decision-making" pays attention to the scientific value and decision-making basis of the integrated data,and the link between the two is "big data governance",respectively driving different big data governance models.Although there are still many problems in big data governance in China,digitization has been widely used in various fields such as urban governance and public services.In the future,digital governance will gradually transform to "smart governance".

Key words: digital governance, nformationization , e-government, big data governance, big data decision-making