中文摘要：

为了检验产业自身科技水平对制造业国际R＆D溢出效应及产业生产率提高途径的影响，根据1999--2004年产业R＆D平均投入强度，将制造业划分为高、中、低技术产业，然后基于DEA对其全要素生产率变化、技术效率变化和技术进步变化指数进行测算，最后实证检验了国内本产业、国内其它产业、国外本产业R＆D资本对上述3类产业全要素生产率变化、技术效率变化和技术进步变化的不同影响。结果表明：国外R＆D资本对高技术企业存在显著的正向技术溢出效应，而对于中、低技术产业来说，本产业R＆D资本是生产率提高的主要来源。根据上述分析结果，对我国的产业研发投入、国际贸易政策的制定提出了建议。

英文摘要：

In order to test the impact of industries＇ own scientific and technological level on their international R＆D spillovers and productivity growth path, according to the sector＇s average R＆D investment density from 1999 to 2004, the paper divides Chinese manufacturing into high, medium and low-tech industry .Then based on DEA, the tfpch, effch, techch of the industries have been measured. Finally, the paper empirically tests the domestic foreign R＆D capital of industry itself and other industry R＆D capital＇s impact on three different manufacturing productivity. The result shows that foreign R＆D capital has significant positive spillover to high-tech industry, while industries themselves R＆D activity is the main source of medium and low-tech industry＇s productivity growth. Based on above analysis, some advice has been made for our country＇s industrial R＆D investment and international trade policy.