As the main area where the Indian plate collides with the Eurasian plate, the southern Lhasa terrane has abundant mineral resources. The deep structure of the deposit has an important effect on the dynamic mode and mineralization structure. The P- wave receiver functions obtained by 33 broad band seismographs in Jiama- Qulong deposits were used to obtain the deep structures in the study area by H- κ superposition and common conversion spot (CCP) stacking technique. The average Moho depth in the region is 66 km, and the Moho depth is inversely proportional to vP/vS, indicating the thickened felsic crust in the region. According to the CCP results, it is speculated that there is no Moho doublet under the deposits, indicating the removal of the lithospheric mantle. The results of this study indicate that the remelting of the juvenile crust under the deposit not only destroyed the Moho doublet formed by the collision of the Indian plate but also made the crust of Lhasa further fractionated, the lower crust was more mafic, the Moho phase was thickened.