Abstract: The reform of government governance is synchronized with the development of the times and the needs of the people. In the DT era, building a digital government and implementing data government affairs follows the evolutionary logic of political development and is the best choice for smart governance. The digital governments system architecture and innovation mechanism highlights the new forms of governing the country, managing the government, and serving the public. It also presents a multidimensional and functional picture of data government affairs, which can reduce the cost of decision-making, enhance the rationality of public administration, the responsiveness of government governance, the scientific nature of policy operations. It is true that digital government and data government affairs still need some improvement strategies. To this end, it is necessary to improve the mental structure, strengthen the principles and norms, and establish an effective strategic mechanism to guarantee the implementation, so as to stimulate the positive energy of big data and promote the economic and social transformation and development; all parties enjoy more balanced and fuller interests.

Key words: DT era, digital government, data administration, public governance, big data technology