Longjiaoshan Cu W deposit is a strata bound skarn deposit in southeastern Hubei Symbol`@@Province. In this paper, the authors carry out detail geochronological study by using LA ICP MS zircon U Pb and molybdenite Re Os analyses. The results indicate that the granodioriteporphyries in the Longjiaoshan orefield were emplaced in 144±1Ma, and mineralization occurred in 144 7±2 9Ma, suggesting that diagenesis and mineralization were broadly coeval and occurred in Early Cretaceous. This means that the mineralization was closely related to the evolution of granodiorite porphyries. The Longjiaoshan Fujiashan granodiorite porphyries are high K calc alkaline, and show adakite like geochemical characteristics, such as high Al 2O 3(14 99%~16 16%), Sr(751×10 -6 ~1382×10 -6 ) contents and Sr/Y(65~99), La/Yb(40~48) ratios, as well as low Y(12×10 -6 ~15×10 -6 ), Yb(0 93×10 -6 ~1 23×10 -6 )contents. ( 87 Sr/ 86 Sr) i and ε Nd ( t ) value of the whole rock is 0 70603 and -5 1, respectively, and zircon ε Hf ( t ) values range from -0 5 to -4 8. Geochemical, Sr Nd isotopic of the whole rock and zircon Hf isotopic characteristics consistently indicate that the Longjiaoshan Fujiashan granodiorite porphyries were mainly derived from partial melting of enriched lithospheric mantle, and possibly followed by fractional crystallization of mafic minerals in the course of the diagenesis. Moreover, compared with the Tongshankou granodiorite porphyry, the Longjiaoshan Fujiashan granodoirite porphyry has lower oxygen fugacity, which likely resulted in their difference of mineralization type(Cu Mo mineralization predominated in the former, however, Cu W mineralization predominated in the latter).