中文摘要：

文章在对国内外相关文献进行归纳和梳理的基础上，从半结构化文本知识抽取的载体类型、内容与技术方法3个方面，对其研究现状与进展进行了综合论述，并展望了未来的研究发展趋势。

英文摘要：

Based on the induction and analysis of related literature at home and abroad,this paper discusses the research status and development of knowledge extraction for semi-structured text from 3 aspects,such as carrier type,content and techniques,and prospects the development trend of future research as well.