Abstract: Xiaogouli and Sanyangba gold deposits of western Qinling are located at the mid-western of XichengPb-Zn ore-field, Huicheng Basin. Based on the previous research data, the mineralization environment evolution of these two deposits has been analyzed and studied inthis paper systematically, including stratum, structure and granitic magma. And then, the metallogenetic model has been summarized. For these two gold deposits, the ore bodies are occurred in the upper section of the Xihanshui Formation in the middle Devonian that dominate by chlorite sericitephyllite. And these two deposits are metamorphic hydrothermal deposits caused by early sedimentary metamorphism and magmatic hydrothermal superimposed transformation inearly Yanshan period. The mineralization period had experienced the closure, uplift and orogenic stages of the Huicheng basin, which are consistent with the tectonic evolution stages of collisional orogeny and continental thrust in the Qinling Mountains orogenic belt.On the whole, the ore bodies are distributed along the stratum,and are controlled jointly by a set of intermediate-acid and calcium-alkalinestratiform granite porphyry, as well as the NW-trending ductile structure zone. In the tectonic environment of intra-continental thrust and pressure torsion, the ore-bearing strata and ore bodies show slightly wavelikein strike and dip. By the reconstruction of the late extensional and shear structures, the ore bodiesare thickening and the gold grade is increased.This paper provide geological basis for studying the mineralization regularity of Huicheng basin, and the resource integration of mine periphery for mine enterprise.