World merchandise trade in volume terms fell by 0.1% in 2019，the first drop since 2010. World merchandise trade value fell by 3%，which was significantly higher than that in volume terms，mainly due to the sharp drop in energy prices，especially in oil prices. In 2019，the world’s exports of commercial services reached US $5.90 trillion，an increase of 2.1%，lower than that in 2018. Under the impact of the COVID-19 epidemic，the world merchandise trade in volume terms fell by 8.48% in the first half of 2020，and the world trade in services also showed a downward trend. It is expected that the situation of world trade in goods in the second half of 2020 will be slightly better than that in the first half of 2020. In 2020，the decline of the volume of merchandise trade will be about 10%，which is the second recession after the recession of trade during the international financial crisis in 2009. It is expected that world trade will recover significantly in 2021，and the growth rate of merchandise trade will be between 5% and 10%. However，the recovery of trade is still affected by uncertain factors such as repeated outbreaks of COVID-19 epidemic.