摘要：产业集群作为一种特殊的经济活动空间组织现象，在区域经济、国家经济乃至世界经济发展过程中发挥了某个企业所无法替代的作用。本文采用定性研究和定量分析的方法对丹阳眼镜产业集群进行研究。研究结论有：（1）丹阳眼镜产业集群跨入成熟产业集群行列，但是仍然存在过分依赖出口、政府扶持力度不够、创新能力弱、产品档次低、眼镜协会不成熟等诸多问题。（2）丹阳产业集群在全国有比较高的集聚度，但是2007年开始，丹阳在全国眼镜行业地位有下降趋势；（3）提升丹阳产业集群竞争力措施比如：提高产品附加值；国内外市场两把抓；加大行业创新项目投入，增加与高校和研究机构的交流合作；充分发挥眼镜协会的作用，打造区域品牌； 政府提高服务普及率，组织技术、商标类的培训。

关键词 产业集群； 产业集聚度；眼镜产业 

Abstract   Industrial cluster as a special kind of economic activity space organization phenomenon, in the regional economy, national economy and the world in the process of economic development plays an irreplaceable role in an enterprise. This article adopts the method of qualitative research and quantitative analysis of danyang glasses industry cluster were studied. Research conclusion：Glasses industry of DanYang city cluster into mature industrial clusters, There are still problems. for example，Rely too much on exports、Government support is not enough、Weak innovation ability、lowly product、Glasses that isn't ripe in the association。Danyang across the country have higher agglomeration degree of industry cluster, but starting in 2007, danyang glasses industry status in the country are declining trend；Danyang industry cluster competitiveness measures such as: enhancing the added value of the product; Two markets at home and abroad to grasp; Increased investment in industry innovation projects, increase exchanges and cooperation with universities and research institutions; Give full play to the role of the association of glasses, building regional brand; Government to improve service penetration, organization technology, trademark class training.

Key words  Industrial cluster;  Industrial concentration degree;  The glasses industry