Abstract: Web information is expanding quickly with the dramatic expanse of Internet In this paper a Web information extraction and integration method is proposed, which is based on structure analysis and entity extraction Firstly it converts the semi structured HTML documents to formal XML documents with schema using XML technology Then significative information can be extracted from interesting area through entity recognition process Finally tremendous formal information can be integrated into database, which can support advanced query and analysis This approach also defines some patterns which can deal with heterogeneity of Web documents and achieve individuation of integrated documents The results of experiments validate the feasibility of the approach