本文采用中国投入产出表及联合国数据库相关数据测算了2005年到2010年6年来工业中我国对美国出口贸易的产品内分工水平,重点研究了来自日本的中间品对这一指标的影响。通过对工业总体和分行业实证分析得出结论:工业中我国对美国出口产品内分工水平一直保持在20%上下,然而来自日本的中间品在其中占有相当一部分比例。 Based on the data of China’s input-output table and UN database, this paper estimates the level of internal division of labor between China and the United States in the industry in the six years from 2005 to 2010, and focuses on the influence of the intermediate products from Japan on this indicator. Through empirical analysis of the industry as a whole and sub-sectors, it is concluded that the level of internal division of labor in China’s exports to the United States has remained at a level of about 20%. However, intermediate products from Japan occupy a considerable proportion of them.