The results on the study of typomorphic peculiarities of magnetite, pyrite, sphalerite and galena collected from Kendekok Fe-Zn-Pb deposit, Qinghai, China, are presented. The Kendekok magnetites are richer in TiO2 and A1203 than skarns- hydrothermal deposits, and richer ih Mg0 and Mn0 than sedimentary-meta- morphic deposits. Their average hardness is 515 kg/mm2, specific gravity 5.16, reflective power 18.4%, the unite cell a0=8.3964A. The Kendekok pyrites are rich in As, but poor in other minor elements. Their average hardness is 1371kg/mm2, specific gravity 4.85, reflective power 52.0%，and the unite cell a0 = 5.4177A. The Kendekok sphalerites are rich in Cd and Se, but poor in Ag, Ga and Ge. Their average hardness is 173kg/mm2, specific gravity 3.96，reflective power 16.9% and the unite cell、a0=5.4195A. The Kendekok galenas are rich in Se, Cd and Bi, but poor in Sb. Their average hardness is 62kg/mm2, specific gravity 7.52, reflective power 42.2% and the unite cell a0=5.9335A， The results of preliminary study show that Kendekok deposit is a Tran- sitional type between sedimentary-metamorphic .and skarns-hydrothermal deposits. The source rock of the deposit is a sedimentary-metamorphic rock rich in iron and other minerogenetic elements. The genesis of the deposit is a result that the source rock suffered a hydrothermal metasomatism during the magnesian skarns diigenetic process.