中文摘要：

作为主流贸易理论的基石，比较优势理论随着经济实践的变化不断发展、扩展、更新，从不同视角表现出新的活力。本文从比较优势理论的基本构成出发，循着比较优势理论发展的基本路径，梳理总结了围绕比较优势基础模型所取得的外延扩展研究方面的新成果，并探析了比较优势理论内涵式创新研究的新进展，最后对比较优势理论研究成果和未来研究方向进行了简单评述。

英文摘要：

As the cornerstone of the mainstream theory of international trade , the comparative advantage theory always maintains sustained development , expansion and updation with the change of economic practice, embodying new vitality from different aspects .Firstly, this paper analyzes the structure of the theory of comparative advantage .Then it explores the basic development path of the theory , and investi-gates the new extensive achievements made about basic models .The fourth part focuses on the intensive innovation of recent studies .Finally, this paper will make some comments on the research results and the future research about this theory .