Based on cathodoluminescence (CL) images, the authors present LA-ICP-MS and SHRIMP U-Pb zircon data of biotite-quartz schist and granitic leucosomes in the Shigu-Liming area. Most zircon grains separated from biotite-quartz schist show clear oscillatory zoning, and most of them from granitic leucosomes are characterized by core-rim structure with strongly or weakly oscillatory zoned cores and narrow black rims. Analysis of zircon cores from biotite-quartz schist and granitic leucosomes yielded U-Pb ages of 2 637~743 Ma with age peak at 858~852 Ma, indicating that their sediments were mainly transported from Neoproterozoic magmatic rocks of western Yangtze Block and also from Archean to Paleoproterozoic basement rocks and deposited after~852 Ma. These zircon rims have low Th/U ratios (<0.1) indicating the timing of anatexis. U-Pb analysis spots yielded ages of 225~197 Ma, and this age population is completely consistent with the age range of the Permian-Triassic metamorphic events of Jinshajiang-Diancangshan-Ailaoshan complex.