Changgou ore block located in central south of Qibaoshan multi-metal mining area.Wulian County of Shandong Province.Changgou ore block has more than ten multi-metal ore vein,occurs in secondary volcanic rock mass,the largest scale is lead-zinc vein I.Extension direction of ore body is nearly EW,SW tendency,dip angle has great changes from 35°to 80°.We utilized OPIS system to analyze the main mineralization indicator,such as ore-controlling structure and ore grade.The analysis results of mineralization indicate isoline map shows that,conducts a brief description on the mineralization enrichment regularity of No.I lead-zinc ore body,combining with morphological changes,finally obtains two possible prospecting area,located in mid-shallow of exploration line G710,at-50 to-180 m level,and mid-deep of exploration line G710,at-150 to-290m level.