The Yankong-Songlin area is an important region in Guizhou Province for carbonaceous-siliceous-argillaceous rock⁃type uranium mineralization and a major production area for nickel, molybdenum, vanadium, andplatinum group elements（PGEs）. Systematic studies on the mineralization characteristics and geochemical features ofU-Mo-Ni-V-PGEs in this area remain limited. Through analysis of U, Mo, Ni, V, and PGE mineralization characteristics,trace elements, and rare earth elements in the black rock series of the Niutitang Formation in the Yankong-Songlinarea, the metallogenic environment, mineralization processes, material sources, and genetic mechanisms were investigated.Results indicate three mineralization types in the Yankong-Songlin area: U-P type, U-V type, and U-Mo-Ni-PGEtype. Elements U, Mo, V, As, Sb, and Ba show significant enrichment in ores. Light rare earth elements are enrichedwhile heavy rare earth elements are depleted, with Eu exhibiting positive anomalies and Ce showing negative anomalies.Redox environment indicators including w（U）/w（Th）, δU, w（V）/w（Sc）, w（V）/w（Cr）, w（Ni）/w（Co）, w（V）/w（Ni+V）, and w（Cu）/w（Zn）all suggest formation of the U-Mo-Ni-V-PGE⁃bearing rock series in an anoxic and restrictedreducing environment. Enrichment of hydrothermal indicator elements（Ba, Sb, and As）combined with w（U）/w（Th）,δEu, δCe, and w（Zn）-w（Ni）-w（Co）ternary diagrams demonstrate that U-Mo-Ni-V-PGE mineralization relates tohydrothermal sedimentation. Metallogenic materials exhibit multiple and deep sources, with uranium partially derivedfrom uranium⁃rich stratum rocks and partially from deep⁃source uranium-molybdenum-nickel-vanadium⁃bearinghydrothermal fluids. Comprehensive analysis suggests U-Mo-Ni-PGE type mineralization is predominantly formedthrough exhalative sedimentation, U-V type mineralization mainly through syngenetic sedimentation and enrichment +leaching reformation, while U-P type mineralization is primarily through syngenetic sedimentation + thermal reformation.