In this paper, an OntoCrawler based on the ontology-supported technique for webpage searching was proposed, in which only user entered some keywords would the system supported by domain ontology actively provide comparison and verification for those keywords so as to up-rise precision rate of webpage searching. This technique has practically been installed in Google and Yahoo search engines and furthermore searched some related scholars’ personal webpages and accordingly stored the results into a database to let the backend systems to do advanced processes. The preliminary experiment outcomes proved the OntoCrawler based on ontology-supported techniques proposed in this paper could really up-rise the precision rate of webpage searching.