By 2035, it is planned to form four urban rail express lines (224 kilometers), eight urban rail commuter lines (242 kilometers) and an extension line from Dongguan to Shenzhen, with a planned total mileage of 473 kilometers. Among them, Line 20 17 1 Planning new branch line (Da Lang Fumin South Road Station? Tangxia South Station) is merged into the 1 line, and it goes directly from Tangxia to Zhangmutou, Da Lang, Songshan Lake, Dalingshan, Dongcheng, Cheng Nan, John Wan, Daojiao, Wangniudun, Mayong and other township streets. The line is positioned as an express line with a total length of 93 kilometers. 1 Line sets Dongguan South Station, Hu Jing Road Station, Huanshi Road Station, Tangxia Central Station and Eling Road Station in Tangxia, and connects the Shenzhen rail transit network to the south. The new 16 line from Dongguan South Railway Station (Tangxia Station) to Fenggang via Qingxi is positioned as a commuter line, with a total length of 30 kilometers. By 2050, it is planned to form four urban rail express lines (263km), 13 urban rail commuter lines (386km) and two sections of Shenzhen extension line (19km), with a planned total mileage of 668km. Among them, the original planned rail transit line 4 passes through Tangxia (Huangjiang? Qingxi), changed to 15 line, positioned as a commuter line, with a total length of 29 kilometers, and the line direction is basically unchanged.