The geochemical characteristics of the lead isotopes in the gold deposit zone from Zhuji to Longquan, Zhejiang Province, have been studied. According to the isotopic composition, μ, ω, κ and model age of lead, the isotopic compositions of the gold deposits can be divided into two types representing different sources of ore materials: (1) ordinary lead, such as the situation of Huangshan and Zhongao deposits. With stable lead isotopic compositions and characteristic parameters of the source region of island arc area in these deposite, in which the rock has not been contaminated by the crustal radiogenic lead; (2) weak rediogenic anomalous lead, with Zhilingtou and Babaoshan deposits known as this type lead, which can be characterized by the higher and scattered isotopic ratios and characteristic parameters, indicating the mixing metal sources mainly derived from the upper crust.The regional metallogenic age of the gold deposits has been estimated from 400 to 700 Ma, which is the same as the main metamorphic age(400-700 Ma) of the basement strata in this area. So, the gold deposits in this area should be classified genetically mainly into metamor-phic hydrothermal gold deposits. Furthermore, a few of model age data of the gold deposits with weak radiogenic anomalous lead indicate that the deposits have undergone superimposed volcanogenic and magmatic hydrothermal mineralization during Yenshan movement.