After detailed field survey, the trace element and Hf isotope compositions and U-Pb age of zircons from granite at Lianghe in Western Yunnan were studied. Most of the zircons exhibit magmatic oscillatory zoning. Specially, a zircon with two cores has been discovered, which preserved inherited core and growth zone and hydrothermal domain. The inherited cores show similar trace element characteristics with igneous zircons. But the growth zone (with low LREE and negative Ce anomalies and high HREE, low Th, high U and Ti and P abundances) point to a significant difference from the magmatic zircons. Observe the zircon with two cores also has a significant hydrothermal domain, we regard the trace element characteristics of the growth zone as a result of the crystallization associated with hydrothermal activity. The inherited core and growth zone both have igneous affinity. Two inherited cores show the 206Pb/238U age of 302.5±2.9 Ma and 289.9±2.5 Ma, respectively. Igneous zircons together with growth zone yield a weighted mean 206Pb/238U age of 213.1±1.7 Ma (MSWD=7.7), indicating the granites were formed in the late Triassic. Their εHf(213 Ma) are negative ranging from -9.6 to -6.7, with Hf model ages between 1.6~1.8 Ga, indicating the granites were crust-derived magmas and maybe emplacement at post-collision extensional setting.