As to the vast video information and its loose distribution, a vertical search engine is especially designed for video information through lucene and heritrix. With BKDRHash algorithm, a pointed video research is implemented. Web pages capture, content filtering and index set-up are integrated to greatly decrease the consumption the system, changes the traditional method to capture the whole page by the search engine, filter the useless information. It is creative in picking up page information and picking process of playing linking.