本研究立足我国数字经济发展特色，以数字产业化、产业数字化、数字化治理三个方面为分析视角，构建“数字经济发展指数”指标体系，利用官方及企业数据，对我国整体及31个省（自治区、直辖市）的数字经济发展水平进行分析评价。结果显示，截至2021年12月，全国数字经济发展指数为130.9，环比增长2.4%，同比增长15.3%，数字经济持续稳步提升。一级指标数字产业化、产业数字化、数字化治理指数分别为55.8、62.6和12.5，分别同比增长28.3%、4.5%和23.8%。2021年，5G和千兆宽带建设呈现爆发式增长，5G基站数和千兆宽带用户数分别同比增长98.5%、440%，对整体数字经济发展指数拉动提升作用明显。
Based on the characteristics of the development of the digital economy in China，this study is designed to construct the Digital Economy Development Index，an indicator system that takes three perspectives-the digital sector，industrial digitization，and digital governance-and uses official and enterprise data to analyze and evaluates overall digital economy development both in China as a whole and in 31 provinces （autonomous regions，municipalities）. Its results show that as of December 2021，the National Digital Economy Development Index was 130.9，up by 2.4% month on month and 15.3% year on year，suggesting steady improvement. The indexes for first-level indicators-the digital sector，industrial digitization，and digital governance-were 55.8，62.6 and 12.5 respectively，or year-on-year growth of 28.3%，3.8% and 23.8%. In 2021，5G and gigabit broadband developed with explosive growth，with the number of 5G base stations and gigabit broadband users increasing by 98.5% and 440% respectively year on year，demonstrating significant boost on the overall Digital Economy Development Index.
| Keywords： | Digital GovernanceDigital IndustrializationIndustrial DigitizationDigital Economy Development Index |
