The author investigates the impact of COVID‑19 and macro-policy adjustment on China’s economic development. The aim is to describe the situation and trend of China’s economic development before and after COVID‑19. The research method is the comparative data analysis. The study shows that in response to COVID‑19, the Chinese government, on the one hand, has accelerated its opening-up, taken the opportunity of fighting against the pandemic to provide medical assistance to and cooperate with other countries, and actively promoted the building of a community with a shared future for mankind and the process of globalization. On the basis of the Belt and Road Initiative and multilateral, regional, and subregional cooperation mechanisms such as th...