尽早识别前沿交叉领域对于国家科技竞争力的提升和战略技术布局至关重要。文章在系统梳理交叉领域与前沿领域概念的基础上，明确界定前沿交叉领域的内涵及关键特征，提出“三元交叉×要素交叉”多元交叉关系的理论释义，通过比较现有方法体系，进一步构建基于多元交叉关系的前沿交叉领域识别路径，从宏观、微观和中观三个层面搭建前瞻性框架体系，其中宏观层面从政策与战略导向关注重点发展方向，中观层面从领域动态测度生长机制，微观层面则聚焦创新要素识别关键突破点。研究结果为开展前沿交叉领域识别与预测实证研究奠定基础，同时为国家和区域的科技战略决策提供重要参考。

The early identification of frontier interdisciplinary fields is crucial for enhancing national scientific and technological competitiveness and optimizing strategic technological deployment. This study systematically reviews the concepts of interdisciplinary and frontier fields, clearly defines the connotation and key characteristics of frontier interdisciplinary fields and proposes a theoretical interpretation of "triple intersection × element intersection" within a multidimensional framework. By comparing existing methodological systems, the study further develops an identification pathway for frontier interdisciplinary fields based on multidimensional intersection relationships. A forward-looking framework is constructed at the macro, meso, and micro levels: the macro level emphasizes policy and strategic guidance to identify key development directions; the meso level measures growth mechanisms through dynamic analysis of fields; and the micro level focuses on identifying critical breakthroughs based on innovative elements. The theoretical framework and forward-looking pathway proposed in this study provide a solid foundation for empirical research on the identification and prediction of frontier interdisciplinary fields and offer significant reference value for national and regional science and technology strategic decision-making.