本书对植物品种权这一新兴知识产权类型进行了体系化研究。在回顾植物品种权发展历程的基础上，论证植物品种权制度的合理性及其构建规律，分析植物品种权的客体、主体、权利内容及其限制以及植物品种权保护中的疑难问题，廓清其中的基本概念。The book conducts a systematical study on plant variety rightst that is a burgeoning intellectual property. On the basis of reviewing the development of plant variety rights, this book argues about the rationalization and establishment rule of plant variety, analyzes the object, subject, rights content and limitation of plant variety rights as well as thorny problems occurred in plant variety protection, and clarifies the basic concepts in it.