Recently, the second phase of Qingdao Metro Line 7 has made new progress and will enter the power supply and weak current engineering stage. It is constructed by Qingdao Metro Group Co., Ltd., with a total investment of 17,816.49 million yuan.

Qingdao Metro Line 7 starts in Shinan District of Qingdao, passes through Shibei District, Licang District, and Chengyang District, and ends at Longquan Town in Jimo District. The line has a total length of 56.6 km, entirely underground, with 43 stations, including 12 transfer stations, and includes the Dongguozhuang Depot, the Bei'an Parking Lot, and the Yinchuan West Road Parking Lot.

The first phase of Line 7 starts at Xingguo Road Station and ends at Dongguozhuang Station; the line has a total length of 17.3 km, all underground, with 12 stations; it includes one Dongguozhuang Depot (built on behalf of Line 1); it is managed on behalf of Line 1 by the control center. The section of the first phase of Line 7 from Xingguo Road Station to Dongguozhuang Station was completed and opened to traffic in December 2020.

The second phase of Line 7 has a total length of approximately 16.877 km, entirely underground, with 14 stations, all underground, including 5 transfer stations, of which 3 are transfer stations with the approved line network and 2 are transfer stations with the line network under preparation. It includes one new Bei'an Parking Lot and simultaneously expands the second phase of the Dongguozhuang Depot.

The second phase of Line 7 is divided into two sections: the northern extension and the southern extension. The northern extension is approximately 13.095 km long, entirely underground, with 11 stations, including 3 transfer stations, and an average station spacing of 1.17 km; it includes one Bei'an Parking Lot. The southern extension starts from the Cangkou Station transfer station with Line 8, is approximately 3.782 km long, entirely underground, with 3 stations, including 2 transfer stations, and an average station spacing of 1.16 km. The line uses B-type cars in 6-car formations, with a maximum operating speed of 100 km/h.