中文摘要：

生产和出口价值链长度反映了一国不同行业的生产技术状况，在假定生产技术变化呈现不同方式的基础上，本文提出了分行业出口价值链长度测算的三种方法。由于生产价值链延长和出口结构变化，中国制造业出口价值链长度在2001—2010年期间呈现上升趋势，并不断靠近中国自OECD国家进口价值链长度值，表明制造业出口产品在向相对上游生产环节转移，在全球价值链中的相对位置提升，这有助于制造业获取更多的出口贸易利益。

英文摘要：

Value chain length of production and export reflects technology status of different industries. This paper proposes three methods to measure the length of export value chain in different industries assuming that manufacturing technology changes in different manners. Owing to the prolongation of production value chain and changes in export structure, the export value chain length of China＇s manufacturing industry shows a rising trend from 2001 to 2010, approaching to the value chain length of China＇s import from OECD, which demonstrates that China＇s manufacturing export products are transferring to the relative upstream of production and upgrade in global value chains. This helps the manufacturing industry get more export interest.