In 2020，facing the severe and complex situation at home and abroad and the important task of comprehensive epidemic prevention and control，the industrial economic growth in the Yangtze River Delta slowed down，slightly higher than the overall national growth level，the growth rate of industrial investment in different provinces and cities significantly differentiated，the economic benefits of Industrial Enterprises above designated size were significantly improved，and the scale of industrial assets expanded rapidly. In terms of the development level of key industries，the manufacturing of computers，communications and other electronic equipment has developed steadily，and the production of industrial products such as integrated circuits has increased significantly；There are obvious differences in the development level of chemical raw materials and chemical products manufacturing industry；The electrical machinery and equipment manufacturing industry in all provinces and cities has achieved rapid development；The benefit efficiency of automobile manufacturing industry has declined. 2021 is the beginning of the 14th Five Year-Plan and a new journey to build a modern socialist country in an all-round way. The Yangtze River Delta will give full play to its demonstration and leading effect in the country and lead the high-quality economic development in the new era.