A method of producing pottery ornament, that is densely covered with tiny edges and corners. The main step is to make resin prototype by silica-gel mould, that moulded by a base densely covered with tiny edges and corners. Cover and below parts of silica-gel mould are made separately by resin prototype. Then, slurry is poured into silica-gel mould, moisture of slurry is absorbed by cover part of mould, forming two parts of base with established thickness. Cover part of silica-gel mould is removed, slurry is applied into junction of two parts of base. After the slurry in junction is dried, the complete base is made. With high temperature sintering, the pottery ornament densely covered with tiny edges and corners is obtained.