品牌延伸是传统的市场营销理论所推介的重要营销策略之一，即以现有品牌名称推广新产品。企业利用已成功的品牌连带推广系列产品可以事半功倍，似乎成为一条经验之谈，引得众多企业竞相效法。品牌延伸策略确实具有多种优势。首先，企业在利用自己已经树立起来的市场形象介绍新 Brand extension is one of the important marketing strategies promoted by traditional marketing theory, that is, promotion of new products under the existing brand name. Enterprises using successful brands to promote a series of joint products can be more effective, it seems to become a talk of experience, attracted many companies compete to follow suit. Brand extension strategy does have a variety of advantages. First of all, companies are using the market image they have set up to introduce new ones