以构造 -流体 -成矿系统理论为指导 ,在综合分析煎茶岭大型金矿床的区域地质背景、成矿地质条件、成矿物质来源、成矿物理化学条件、成矿作用特征及成矿时代的基础上 ,研究探讨了其成矿机理。认为该金矿床成矿物质主要来自超基性岩 ,在中低温碱性还原环境中成矿 ,成矿时代为加里东晚期—燕山期 ,成矿作用具长期、多期性。其成矿机理复杂 ,主要以构造岩浆热液成矿作用和构造流体改造成矿作用为主 ,通过充填交代蚀变方式而形成该微细浸染状构造蚀变岩型金矿床。 Guided by the theory of structure-fluid-metallogenic system, this paper analyzes the regional geological background, the metallogenic geological conditions, the sources of metallogenic materials, the metallogenetic physico-chemical conditions, metallogenic characteristics and the metallogenic epoch On the study of its mineralization mechanism. It is concluded that the metallogenic materials of this gold deposit are mainly derived from ultrabasic rocks and mineralized in low-temperature alkaline reduction environment. The metallogenic age is Late Caledonian to Yanshanian, and the mineralization has long-term and multi-period. The ore-forming mechanism is complex and mainly consists of tectonomagmatic hydrothermal mineralization and tectonic fluid alteration and mineralization. The finely disseminated tectonic alteration rock type gold deposit is formed by filling metasomatic alteration.