Abstract: The Luotuoshan zinc-copper polymetallic deposit in Luanchuan County，Henan Province is located at the junction of the southern margin of the North China Block and the North Qinling Orogenic Belt， in the northwest of the Luanchuan mining area， mainly containing pyrite， zinc， copper， associating with few scheelite， molybdenite， fluorite and other minerals. In order to conduct reliable prediction evaluation on the overall situation of copper-zinc polymetallic resources， existing small scale terrain geological map， drilling data， geochemical data， gravity data， magnetic data and electric data are adopted to establish a 3D geological model of multivariate geological information.With quantitative prediction of favorable section and deep engineering verification， major breakthrough was made in deep prospecting work. According to the latest exploration achievements in Luotuoshan zinc-copper polymetallic deposit， four zinc-copper polymetallic ore bodies were found in the deep and periphery of the mine. New added lead， zinc， copper and silver resources are 39 700 tons， 569 700 tons， 36 100 tons and 30.68 tons respectively， and it belongs to a large-scale zinc-copper polymetallic. Comprehensive study suggests that the Luotuoshan zinc-copper polymetallic deposit located in the Luanchuan ore concentration area is similar to the surrounding molybdenum-tungsten-lead-zinc deposits. It belongs to the same magma-hydrothermal mineralization system and is a layered skarn deposit of magma-hydrothermal metasomatic. The metallogenic system shows obvious zoning from the deep to the periphery， and that is，the deep part is the Nannihu pluton， with Nannihu tungsten-molybdenum deposit at the outer contact zone of the pluton， and the middle-upper part （600~1 500 m range） is a skarn type copper-zinc polymetallic deposit （medium-high temperature）， and the upper part is a vein-shaped lead-zinc-silver deposit （1 500~2 500 m range）. The Luotuoshan deposit is located at the middle-upper transitional zone of the metallogenic system and it is only a small part. The prospecting potential is huge， and there is possible for mineralization along the anticline axis to the west and the north wing of the anticline，dsides that，these areas are expected to become a super-large zinc-copper polymetallic deposit with further exploration.

Key words: deep prospecting, copper-zinc polymetallic deposit, skarn type, Nannihu anticline, prospecting direction