Abstract: Aiming to determine the reasonable vertical net distance of urban rail transit double track overlapping shield tunnels, a numerical model of double track overlapping shield tunnels is established. Under the total 12 working conditions, with the new tunnel and overhead existing tunnel intersection angle α being 0°and 90° corresponding to six of the vertical net distance L being 1 m, 2 m, 3 m, 4 m, 5 m and 6 m the existing tunnel overall structure displacement caused by the newly built tunnel construction is analyzed. Taking the newly built Beijing Subway Line 14 Wangjing Station to Futong Station interval tunnel engineering under passing existing Line 15 Wangjing Station to Wangjing West Station interval tunnel as example, by establishing a 3D finite element numerical model and selecting Line 15 existing tunnel vault monitoring points, the settlement monitored and simulated values are compared. The results show that when α= 0° and L = 5 m, 6 m, the existing tunnel arch bottom settlement curves are almost the same and significantly smaller than they are when L = 1 m, 2 m, 3 m, 4 m, while the arch bottom settlement curves in the sbove L situation are similar. As the double track tunnel excavation completes, the arch bottom settlement curve shows an increasing trend in general. When α= 90° and L = 5 m, the dynamic excavation of the newly built shield tunnel has the least overall impact on the existing tunnel. It can be derived that the reasonable vertide net distance between the newly built tunnel and the existing tunnel is 5 m and 6 m.