Abstract: This paper aims to clarify the metallogenic regularity of tin-polymetallic deposits in the Dayishan Area and guide prospecting prediction. To this end, the metallogenic conditions and metallogenic regularity in this area were systematically investigated through field geological surveys, lithostratigraphic analysis, structural and magmatic rock characteristic research, as well as the review of the spatiotemporal distribution and mineralization enrichment regularity of the deposits. Meanwhile, a metallogenic model was built, and prospecting targets were delineated. The results indicate that the Dayishan Area is located at the composite intersection of multiple tectono-magmatic belts between the Central Hunan Depression and the Nanling Uplift. Mineralization is significantly controlled by the NW-trending Dayishan-type faults. The metallogenic processes are closely associated with Middle–Late Jurassic magmatic emplacement. Spatially, three NW-trending mineralization belts （eastern, central, and western） are developed. Due to variations in stratigraphic, structural, and magmatic rock assemblages, different mineralization types are recognized in these belts, including the granite type, greisen vein type, skarn type, and hydrothermal filling-replacement type. The Devonian to Triassic carbonate rocks constitute the primary ore-hosting strata. The Dayishan-type fault system, the magmatic emplacement-related contact structural framework, and the apical protrusions of the granite collectively form a composite ore-controlling system. The Jietou unit of the Tangshipu Superunit （Yanshanian） is identified as the key metallogenic unit. Based on the metallogenic regularity, a metallogenic model was built, characterized by "greisen-type mineralization within the pluton, skarn-type mineralization along the contact zone, and hydrothermal filling-type mineralization in the outer zone". The Xiaotang Pb−Zn ore area in Guiyang County is delineated as a prospecting target with considerable prospecting potential. This study reveals the metallogenic regularity of tin-polymetallic deposits in the Dayishan Area and provides a theoretical basis and practical reference for the exploration and research on similar tin-polymetallic deposits on the northern margin of the Nanling Metallogenic Belt.