Abstract: This paper builds a non-competitive input-output model reflecting digital core industries, and compiles China's non-competitive input-output tables in 139 sectors in 2007, 2012, 2017 and 2020 according to the classification of core industries of the digital economy published by the National Bureau of Statistics of China. This paper measures the contributions of digital core industries to China's economic and employment growth through industry correlation. The results are as follows. Firstly, from 2007 to 2020, the contribution of digital core industries to China's GDP and employment have steadily increased, reaching 24.51% and 19.31% respectively in 2020. Secondly, the development of digital core industries is becoming an important driving force for economic and employment growth. Thirdly, by industry, the contributions of digital core industries to their own value added and employment are greater than those to traditional industries, and this feature is more obvious in recent years. The digital core industries contribute more to service industry and the contribution maintains a high growth trend, while the contribution to the manufacturing industry is relatively small. Fourthly, the digital core industries have a close production correlation with the traditional industries. The dependence of the traditional industries on the digital core industries is increasing, and the role of digital economy in enabling economic development is gradually increasing. Therefore, when analyzing the contributions of digital core industries to China's GDP and employment, it is necessary to consider the enabling role through industry correlation.
