On February 29th, an article in the Economic Daily stated that "whether it is possible to resume work or whether it is safe" is the most complicated step to implement the return of migrant workers. Digital information technology has played a prominent role in guiding the orderly return of enterprises. In the process of epidemic prevention and control, employee re-isolation, and upstream and downstream linkages, Zhejiang applied digital technologies such as big data, artificial intelligence, and blockchain to ensure that the epidemic was controllable. From February 10, due to local conditions Timely and categorized orderly promotion of resumption of production and production. "Big data" also allows Zhejiang's e-commerce, logistics, and express delivery to flow within urban communities, and strives to achieve the goal of "personal control and unobstructed supplies."