Nanjing Metro Line 9 is a line under construction in Nanjing metro network. The first phase of the project officially started on March 8, 2028 and is scheduled to open to traffic in 2024.
The first phase of Nanjing Metro Line 9 starts from Hongshan Xincheng Station in the north and passes through Xuanwu District, Gulou District and jianye district. The line goes west along Hongshan South Road and Jianning Road, turns south to Hexi New City at Xiaguan Station, and reaches Jiangsu Grand Theatre and Constitution Square Station in the south, showing an inverted L shape as a whole.