This paper proposes a new method on strain breeding. That is differentiating strain of a breed through cluster analysis. Make cluster analysis on all the objective traits. It is better to put the same kind of objective traits in the same strain. Through cluster analysis breeder can see the relationship among the objective traits clearly. It offers objective, clear theoretical evidence for making breeding plan. The main aim is to supply useful information so as to improve the genetic study and accelerate the development of eggplant in China.%本文提出在育种中通过聚类划分品系的新思想，对全部目标性状做聚类分析，同类者放入同一品系中选育较好，不同类者可放入同一品系或不同品系。通过聚类分析可清楚地看出目标性状间的关系，为制定育种方案提供客观、清晰的理论依据。供中国黄瓜科研工作者参考，并期望对提高国内黄瓜遗传研究与育种利用水平有所帮助。
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