中文摘要：

在评述国内外研究基础上，实地调研，利用统计资料、问卷、访谈记录等分析虹桥涉外贸易中心功能演化，以及影响生产性服务业集聚的原因。研究表明：①市级政府统筹规划，重点开发能够促进Sub—CBD集聚生产性服务业；②Sub—CBD承担大都市区某一方面的功能，形成高度集聚和关联的专业化生产性服务业企业网络，与核心CBD错位竞争，功能互补；③交通枢纽促进生产性服务业与商业活动向其周边集聚，是Sub—CBD功能拓展的必要条件。依托虹桥综合交通枢纽，完善交通条件，加强政府规划建设，发挥贸易业比较优势，服务长三角，是虹桥涉外贸易中心功能拓展的重要路径。

英文摘要：

In this paper, based on straightening out the relevant research at home and abroad. The author selects Hongqiao Foreign Trade Center of Shanghai （HQFTCS） as study object and analyzes producer services functions of HQFTCS. The author reaches the main conclusions of the study： （1） The municipal government which is in order to promote functions of Sub-CBD should put a lot of attention and investment on Sub-CBDs planning and construction. （2） Sub-CBD should form a high degree agglomeration and relevancy producer services enterprise networks. The unique commercial function form their own competitive advantage is also important for the development of Sub-CBD. （3） Transport hub which could promote the producer services activities to gather around. Improving traffic conditions, using comparative advantage of trade industry, servicing Yangtze River Delta are the main paths of expansion function.