Yongjinglong is an extinct genus of titanosauriform sauropod dinosaur known from the Early Cretaceous of Lanzhou-Minhe Basin of Gansu Province, China.

GSGM ZH(08)-04 was by Li Daqing and You Hailu discovered in 2008 beside the G75 Highway, less than a kilometer from the quarries of Daxiatitan and Huanghetitan liujiaxiaensis, near Zhongpu.

It was collected from the upper Hekou Group, in the southeastern part of the Lanzhou-Minhe Basin, Gansu Province, dating to the Early Cretaceous.

The spine of at least one middle dorsal vertebra is low and not bifurcated and forms with the postzygapophyses a triangular bone plate, directed upwards.

[1] However, a 2019 revision of Chinese "titanosaurs" resolved Yongjinglong deeply nested within Euhelopodidae, sister taxon to Huanghetitan and Ruyangosaurus, or a clade including Euhelopus, Erketu and Gobititan.