Abstract: Through the study of enrichment shale containing kalium associated Yichang phosphate rock determinate the chemical composition, mineral component,the occurrence of potassium minerals dissemination characteristics and monomer dissociation degree.The results showed that K₂O and V₂O₅ existed in hydromica mineral,and most hydromica mineral,commonly between 0.005～0.018 mm,distributed among the siderite and other gangue minerals and a small as inclusions fine disseminated in iron mineral aggregation.