Heavy mineral zircons were separated from diamondiferous lamproites and their associated rocks in Ningxiang and nearby area, Hunan Province, and their main and trace element compositions, interior structure and the U-Pb isotopic ages were obtained with EPMA, cathodoluminescence microscope and LA-ICPMS measurement. The zircons in lamproites from different locations generally have similar geochemical characteristics. The U-Pb dating of zircons suggests that the lamproites were probably formed during multi-stages. A young age of (101.6±5.1)Ma was obtained on four zircon samples from No.1 and No.3 pipe lamproites. The zircon collected from the Cretaceous red strata in Shangwutong area has a concordant 207Pb/ 206Pb age of (2 008±29) Ma. The results cannot specifically determine the source rocks of diamond in the study area.