Dahutang ore concentration area，with reserves of ＞1 million tonnes (Mt) of tungsten，is one of the largest tungsten deposits. Dalingshang tungsten deposit is an important deposite in the Dahutang ore concentration area. The mineralization of the Dalingshang tungsten ore deposit was closely related to biotite granite porphyry, but the features of the biotite granite porphyry have not been studied in detail yet. LA ICP MS Zircon U Pb analyses yield the age of 130.4±1.6Ma for the biotite granite porphyry. Zircon εHf(t) values of the biotite granite porphyry are +3.38 to +8.63 and two stage Hf model ages(TDM2）range from 684Ma to 1020Ma, suggesting that the biotite granite porphyry derived from the remelting of Mesoproterozoic crustal materials(＞1020Ma) contaminated by some mantle materials. These mantle materials may have brought Cu to overlap the tungsten ore bodies. The biotite granite, with the age of 130.4Ma is younger than the tungsten ore bodies(138~144 Ma), indicating that they do not have a genetic relationship with each other.