Throughout the novel coronavirus pneumonia epidemic prevention and control, information technology has become a new weapon against the epidemic. All walks of life actively use information technology to contain the epidemic and carry out online restoration and rehabilitation. The government is no exception. Government websites and new government media have become important windows for online handling of epidemic situation release. On the other hand, epidemic prevention and control has also brought new impetus for data sharing and opening. This paper at first expounds the important role that digital government plays in scientific decision-making, economic regulation, public service, market supervision, social governance and other fields. Then it combs the new space brought by epidemic prevention and control for digital government construction and analyzes the challenges and development bottleneck faced by digital government construction. Finally, the paper puts forward some development suggestions to strengthen the top-level design, government data governance, and talent team construction.