本文通过对国内城市轨道交通全自动运行线路的建设和运营情况的统计，介绍了全自动运行线路及线路规模、全自动运行等级、开通时间，分析了近年来国内全自动运行线路建设和运营里程增长趋势、各城市全自动运行线路的建设规模、全自动运行等级的应用情况，以及信号和列车供货商的应用情况。数据表明，截至2021年底，国内共计有24个城市建设全自动运行线路65条，建设总里程1913公里，其中共计有15个城市已开通全自动运行线路29条，运营总里程932公里。其中采用GOA4的线路共58条，占总线路数量的89.2%，里程1683公里，占总里程的87.9%；采用GOA3的线路共7条，占总线路数量的10.8%，里程230公里，占总里程的12.1%，GOA4自动化等级已成为全自动运行线路的优先选择。国内全自动运行线路已有应用的全自动运行信号供货商11家，列车供货商10家，且多为国内供货商，实现了自主知识产权，有利于我国轨道交通技术装备的创新，推动交通强国目标的实现。

Based on the statistics of the construction and operation of domestic urban rail transit lines which adapt the fully automatic operation technology, this article introduces the automatic line and line scale, grade of automation for each line and operation starting time, and analyzes the construction and operation mileage growth trend in recent years, mileage and quantity of automatic line in each city, the application of Grade of Automation, and also analyzes the application of signaling system supplier and train supplier on the automatic line. The data shows that by the end of 2021, a total of 24 cities in China have built 65 fully automatic lines, with a total construction mileage 1913 kilometers, of which 15 cities have 29 fully automatic lines put into operation, with a total length of 932 kilometers. There are 58 lines adopt GOA4, accounting for 89.2% of the total number of automatic lines, with a mileage of 1683 kilometers, accounting for 87.9% of the total mileage; There are 7 lines adopt GOA3, accounting for 10.8% of the total number of automatic lines, with a mileage of 230 kilometers, accounting for 12.1% of the total mileage. GOA4 has become the preferred choice for fully automatic lines. There are 11 signal suppliers and 10 train suppliers that have been used in domestic automatic lines, most of them are domestic suppliers, and they have realized independent intellectual property rights, which are conducive to the rail transit technology and equipment innovation.