通过对黔东平秋金矿含金石英脉流体包裹体特征及氢氧同位素组成进行分析研究，探讨成矿流体性质及来源。研究区内石英中流体包裹体主要有含CO₂气液两相和CO₂三相包裹体，测试显示为中低温（159.5～351.8 ℃）、低盐度（质量分数为0.53%～16.71%）、低密度（0.58～0.98 g/cm³）流体。液相成分中的Na+/K+比值多＜1，显示该矿床成矿流体具有岩浆热液性质。氢氧同位素组成：δD■为-49‰～-60‰，δ18O■为7.30‰～9.00‰，在δD-δ18O图解上投点落在原始岩浆水与变质水重叠的范围。经综合分析认为该金矿的成矿流体可能主要为岩浆水混合了大量区域变质水的溶液。来自深部的含金成矿流体沿着剪切带等容矿构造上升，在剪切带及由背斜和剪切作用形成的层间裂隙中沉淀，形成了透镜状和层状石英脉金矿床。

 Based on the study of fluid inclusion in gold-containing quartz vein of gold ore in Pingqiu，Jinping and its hydrogen and oxygen isotope composition，this thesis discusses property  and source of ore-forming fluid. There are carbon dioxide gas-liquid two-phase and carbon dioxide gas-liquid three-phase based on the composition of fluid inclusion.The test data indicates that fluid inclusion in this area belongs to fluid in the medium and low temperature（159.5～351.8 ℃），low salinity （0.53%～16.71%）and low density（0.58～0.98 g/cm³）.The specific value of Na+/K+ in the fluid phase composition is less than 1，shows that this deposit has magmatic-hydrothermal character.Hydrogen and oxygen isotope composition: δD■is -49‰～-60‰，and δ18O■is 7.30‰～9.00‰.Cultellation in δD-δ18O diagram is distributed in the overrlap region of metamorphic and vivo.According to analysis by synthesis，ore-forming fluid of this gold ore may mainly include magmatic water mixed a lot of metamorphic water.Ore-forming fluid contained gold goes up along with shear zone and second level shear structure（host structure），settling in shear zone and fracture between interlaminations formed by anticline and shearing action，forming lenticular and layered quartz vein gold deposit.