Abstract: Through the summarize of the working results of geological survey，soil geochemical survey and soil profile survey carried out in Longmen Basin prospective area，the distribution characteristics of geo⁃ logical body，structure and mineralized alteration zone related to mineralization in the area are analyzed， and the metallogenic regularity of the deposit is summarized.Based on the above analysis results，a prospect⁃ ing target area is preliminarily delineated.The main type of deposit is contact metasomatic skarn pb-Zn polymetallic deposit.The analysis results have certain reference value for the subsequent prospecting work in the basin.

Key words: Longmen Basin, skarn type, lead-zinc polymetallic, metallogenic geological condition