Objectives: Outcropping along the northern flank of Yusupualeketage, southern Altyn Tagh, the intermediate—basic volcanic rocks in Bingounan Formation are characterized by an assemblage of offshore marine finegrained terrigenous clastic rocks and carbonate rocks. This rock assemblage mainly consists of altered ignimbrite, andesitic tuff—lava and strongly altered basaltic andesite. Given that this rock assemblage records the breakup of the Columbia supercontinent, it is essential to carry out geochronology study and tectonic analysis for a better understanding of the Precambrian tectonic evolution of the southern Altyn Tagh. Methods: On the basis of detailed field geological survey, we performed the petrology and the zircon UPb dating of two strongly altered basaltic andesite samples from the volcanic rocks in Bingounan Formation, southern Altyn Tagh. Results: Zircon U-Pb dating (LA-ICP-MS) of both two samples yield two age groups, respectively. The first age groups show peak at 944.7 ± 6.4 Ma (n = 8, MSWD = 0.057) and 951.2±6.3 Ma (n = 12, MSWD = 0.042), respectively. Given that all of the 20 analyzed points locates on the oscillatory zoning of zircon, indicative of typical magmatic zircon feature, we interpret these volcanic rocks formed during early Qingbaikou Period. In terms of the second age group, zircon UPb age ranges from 446 ± 5 Ma to 458 ± 4 Ma. Considering the second age group is coeval with the retrograde metamorphism of the protolith (~450 Ma) in this highpressure and ultrahighpressure metamorphic belt, it shows that the volcanic rocks was affected by the event of deep subduction of continental crust and related exhumation process. In addition, we also obtained three age information of 228±6 Ma, 229±4 Ma and 130±1 Ma, which indicates that volcanic rocks have been transformed by Structural—thermal event in the late Triassic and early Cretaceous. Conclusions: In light of tectonic analysis, we suggest these volcanic rocks probably formed in a continental rift corresponding to the late- stage of the break- up of Columbia supercontinent. Then sedimentary basin filled with Suoerkuli Group evolved from transtension to converged setting during which Rodinia supercontinent convergence initiated. Combined with the regional geology and the age from the volcanic rocks in Bingounan Formation, We limit the Precambrian tectonic evolution stage of the southern Altyn Tagh: ① Breakup of Columbia supercontinent during Jixianian to early Qingbaikou Period (945~1602Ma); ② Convergence of Rodinia supercontinent during the middle Qingbaikou Period (871~945 Ma).