The Taoziwo tin deposit located in the west of Lianhuashan faulted belt is a typical volcanic-subvolcanic tin deposit. With the ore-bearing volcanic-subvolcanic rock and granite in the Taoziwo tin deposit as the study objects, the authors performed in situ zircon U-Pb dating and Hf isotopic analyses for the first time. Two samples of volcanic-subvolcanic rocks yielded weighted average ²⁰⁶Pb/²³⁸U ages of 172.1±1.1 Ma and 171.8±0.9 Ma respectively. A granite sample yielded the weighted average ²⁰⁶Pb/²³⁸U age of 168.9±1.5 Ma. These data indicate that they were formed at different stages of the same Middle-Jurassic magmatic event. Most of εHf(t) values are negative, except for three εHf(t) values which vary from -13.96 to 9.53 with the mean value being -7.92. In the εHf(t)-t diagram, εHf(t) values are mostly beneath the chondrite evolution line with three points between the chondrite evolution line and the depleted mantle evolution line. All the two-stage model ages are between 1 450.8 Ma and 2 102.5 Ma except for three points which lie in the range of 609.6～795.5 Ma, indicating that rock-forming materials were mainly derived from the partial melting of ancient early-middle Proterozoic crust with the addition of some juvenile Neoproterozoic crustal materials. In combination with the previous research results, the authors consider that the Taoziwo tin deposit and the related volcanic-subvolcanic rocks were genetically associated with the subduction of the Pacific plate to the Eurasian continent.