In this paper, in view of the sales strategy under differential product competition, we built the Hotelling model to describe the difference in the product quality level of two competing businesses, derived the optimal price and profit of the two when they operated the e-commerce channel and the traditional distribution channel respectively, and at the end analyzed the findings to provide reference for the enterprises engaged in differential competition.%针对产品差异化竞争条件下的销售策略问题，通过构建两个竞争厂商质量水平差异的Hotelling模型，分别讨论了质量差异水平为外生和内生两种情形下，厂商采取电子商务渠道与传统分销渠道的产品最优价格和利润。研究表明，竞争双方利润随产品质量差异化水平增加而增加，当质量差异水平为外生时竞争双方最优选择是采取直销模式，当产品质量差异水平为内生时竞争的结果是双方采取分销模式，这为产品差异化竞争条件下的厂商渠道选择提供了思路。
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