Abstract Porcelain is a kind of new material used in dry-lubricating bearing. It has good wearing capacity in the condition of dry-milling or milling with sand water. Porcelain bearing has been applied successfully. The chosen of material, property characteristics, structural form, property testing and its application used in vertical axial and mixed-flow pump are introduced. As a new dry-bearing material, porcelain bearing has high reliability and it can be spread our widely.