在全球知识经济发展的大背景下，跨学科研究的深度和广度已经成为影响创新进程的一个重要因素，对于国家的社会经济发展和学术成长具有重要的影响。本文在梳理当前国内外跨学科测度研究的基础上，基于汤森路透(Thomson Reuters)科学引文索引(SCI)以及社会科学引文索引(SSCI)中的Web of Science分类，从学科专业化指数、学科集成指数和学科扩散指数三个方面来衡量研究的跨学科性，并通过科学地图可视化的方法来展示跨学科研究的学科分布特征。最后，本文选取2005年至2014年诺贝尔物理学奖获得者所著文献作为实证案例，通过构建的测度指标来研究这些顶级学者论文的跨学科特征。研究结果表明物理学的创新性成果具有明显的学科特征，诺贝尔物理学奖获得者们的研究成果总体上专注于物理学科领域，学科的集成程度和扩散程度还处于较低水平。

Under the background of global knowledge economy, the depth and breadth of interdisciplinary research activity has become an essential factor in the innovation process, which generates an important impact on the macro-economy development and academic growth. In the paper, we firstly review the existing interdisciplinary measurement research at home and abroad. Based on the Web of Science Classification of Science Citation Index (SCI) and Social Sciences Citation Index (SSCI) provided by ISI Thomson Reuters, we propose the Specialization Index, Integration Index and Diffusion Index to measure the inter-disciplinarity of certain research, and a science mapping visualization method to present the distribution characteristics of interdisciplinary research. Finally, taking the publications of Nobel Prize winners in Physics from 2005 to 2014 as examples, we carry out the empirical research on the established index to figure out the interdisciplinary research characteristic of these well-known scholars. The results indicate that the innovative achievements of physics have obvious subject characteristics; the research publication of the Nobel Prize winner generally focuses on the physical science field; both integration degree and diffusion degree are still in a lower level.