从分析工程的基本内容、性质和特征人手，引出了工程系统的概念，接着应用一般系统论思想讨论了工程系统论的研究对象和研究方法，并论述了它在整个工程科学体系中的元学科地位。

Based on analysis of basic contents, nature and feature of engineering, this paper introduces concepts of engineering system and engineering system theory, then discusses objects of study and research methods of engineering system theory using thinking of general system theory. Finally, it expounds meta-discipline standing of engineering system theory in system of engineering science.