From the perspective of importing countries, after the World Health Organization (WHO) declared the Covid-19 outbreak to be an international public health emergency (PHEIC) on January 31, 2020, some contracting countries still implemented temporary controls on the export of certain categories of commodities from China, although WHO did not recommend travel or trade restrictions.Most of the restricted product categories are agricultural products, which have limited impact on China's overall exports in the short term.However, as the outbreak continues, the number of countries with trade restrictions may increase, as may the scope and intensity of the interim measures.