Abstract: In regard to the problems of storage and seamless access of large scale ontology on the Web,a comprehensive and stable relational database (RDB) schema,which is in accordance with the ingredients and organization of OWL languages,is constructed for storing Web ontology in RDB.Besides,an auto-generated RDB views based method is approached to translate the classical ontology queries to SQL queries.With this translating method,the characteristics,such as high flexibility and high richness,of classical ontology query can be maintained in RDB based ontology access,and the RDB based ontology storage becomes transparent to the upper Web applications,which are ontology oriented.