[目的/意义]对外技术依存度反映一个国家对外部技术的依赖程度，是衡量一个国家技术创新能力的一个关键指标。但当前对外技术依存度测度研究重实证而轻理论，存在数据难以获取、结果可比性差、缺少技术内核、忽视隐性依赖等问题。[方法/过程]通过梳理概念脉络，解析概念内涵，总结测度方法，辨析相关关系等，完善了对外技术依存度测度的理论基础。并从以算法优化为主要内容的地域测度方法、以行业分析为主要内容的领域应用研究、以相互关系及影响因素为主要内容的定量论证研究三个方面出发，述评了针对评估对象、测算思路、以及数据层面的测度方法改良研究进展，揭示出当前聚焦对外依存度测度的关系与影响论证研究还较为匮乏。[结果/结论]未来需加强对外技术依存的理论基础研究，探索基于专利的对外技术依存测度方法，并基于阈值效应、舒适区分析研究对外技术依存的战略管理。

[Purpose/Significance]Foreign technology dependence reflects a country's dependence on external technology and is a key index to measure a country's technological innovation ability. However, the current research on foreign technology dependence emphasizes empirical application rather than theory research. And there are some problems such as data acquisition difficulty, poor comparability of results, lack of technical core, and ignore of implicit dependence.[Methods/Process]This paper firstly improves the theoretical basis of foreign technology dependence measurement by sorting out the concept context, analyzing the concept connotation, summarizing the measurement methods and distinguishing the correlation. Then, this paper summarizes the current research into the regional measurement method research with algorithm optimization as the main content, the field application research with industry analysis as the main content, and the quantitative demonstration research with mutual relations and influencing factors as the main content. This paper also reviews in detail the research progress on the improvement of measurement methods at the evaluation object, measurement ways and data level, and reveals that there is still a lack of research on the relationship and influence of foreign dependence. [Result/Conclusion] In the future, it is necessary to strengthen the theoretical basis of foreign technology dependency measurement research, explore the patent-based measurement methods, and study the strategic management of foreign technology dependency based on the threshold effect and comfort zone analysis.

四川省科技计划项目“四川省科技创新合作双循环战略研究”(编号:2021JDR0273);中国科学院成都文献情报中心创新“国际专利合作的技术依存风险”(编号:E1Z0000203)