The domestic and international situations undergo complex and profound changes. The United States launched the trade war against China in 2018. The conflict between China and the United States is deepening. The COVID-19 outbreak and spread all over the world in 2020，which brings unprecedented impact on the world economy. The negative effects transfer between countries through market demand，global supply chains，logistics chains，finance chains. The COVID-19 also has deep impact on Jiangsu open economy. After the COVID-19 is under control，Jiangsu enterprises quickly return to work and production. In spite of the foreign trade import and export rise and fall，the recovery is obvious in the recent months. The FDI of Jiangsu grows against the wind. The total volume increased steadily and the structure continued to be optimized. The Pandemic second wave has come and in the short term it is difficult to control the spread of the epidemic，we suggest that continue to encourage the extended export of the epidemic prevention products and home products，and video products，encourage international trade enterprises to develop online trade，key components，energy，agricultural imports will be expanded till a suitable amount，promoting the government construction of the rule of law，further optimize the business environment.