From DK88+310 from Tongchuan Station (excluding) to DK299+200 from Yan 'an Station (including), the length of the line is 208.616 kilometers, of which the length of the new line is 203.546 kilometers and the existing Baoxi Line is 5.069 kilometers. The total length of the subgrade in this section is 13.221 km, accounting for 6.5% of the total length of the new line. The total length of the bridge is 29.246 km, accounting for 14.3% of the total length of the new line. The total length of the tunnel is 161.386 km, accounting for 79.2% of the total length of the new line.
There are altogether 7 stations in this section, of which 5 are newly built Tongchuan North Station, Yijun Station, Huangling West Station, Luochuan Station and Fuxian North Station. Ganquan North Railway Station uses the existing workshop to expand, Yan 'an Station uses the existing railway station to upgrade.