Abstract: In order to comprehensively utilize the gold and tungsten resources and provide a basis for the optimization of mineral dressing process, process mineralogy study is carried out on a quartz vein type gold-tungsten ore from Henan province using MLA analysis, traditional chemical analysis, X-ray analysis and other methods. The results show that the grades of valuable elements Au and W are 2.15 g/t and 0.12% in WO₃. Au element mainly exists in the form of independent minerals such as natural gold, bismuth gold and silver ore, and closely coexists with metal sulfides, which is mainly in the form of fine-grained and wrapped gold in pyrite. When the grinding fineness (-0.074 mm size fraction) is 65%, only 13.56% gold is released, and 82.86% gold is still wrapped in pyrite. Meanwhile, the chemical analysis shows that the gold contents in pyrite and pyrrhotite are 22.3 g/t and 3.09 g/t, respectively. The tungsten minerals exist mainly in scheelite with fine grain size of 0.1~0.01 mm and a small amount of wolframite. Therefore, gold can be further benefited by magnetic separation of pyrrhotite from the gold flotation concentrate and scheelite was recovered by flotation from the gold tailings.