Abstract: The Jinqingding deposit is the largest gold deposit(> 35 t, average grade 10 g/t) within the Muping-Rushan metallogenic belt of eastern Jiaodong, and the main mineralization category is sulfide quartz-vein category.Based on the study of geological survey as well as trace element composition systematically, the geochemical characteristics of ore-forming fluid and source of ore-forming materials are constrained, and conducts the genesis of Jinqingding deposit as a hydrothermal vein-type gold deposit controlled by faults.In this study, the total rare earth elements(ΣREEs) in the ore varies widely, showing obvious light rare earth elements enrichment and heavy rare earth elements depletion(LREE/HREE=16.75~50.60), with strong negative Eu anomaly and insignificant Ce anomaly.The ratios of Hf/Sm, Th/La, and Nb/La are all less than 1, suggesting that the ore-forming fluid belongs to Cl-rich system.Combined with previous studies on stable isotopes, the δEu value of the ore from stage Ⅰ to Ⅱ gradually decreases in this study, and there may be the addition of meteoric water, indicating that the ore-forming fluid is a mixture of magmatic water and meteoric water.The Y/Ho ratio of sulfide ore, altered and fresh wall-rock implies that altered wall-rock can provide the necessary ore-forming material for gold mineralization.