Abstract: Application field of fructan had expanded unceasingly,and the research of fructan components had been becoming more and more deeply. Components of different structure were constantly found,but because of the lack of standardized systematic nomenclature,it was adverse to analyzing active ingredients of fructan,promoting and applicating. The systematic Chinese nomenclature of fructan was mostly discussed by this paper. After reviewing nomenclature system of Waterhouse and Lewis,analyzing the problems of nomenclature system,synthesizing the respective advantages of Waterhouse and Lewis nomenclature system,and incorporating the habit of Chinese translation and systematic nomenclature,Chinese nomenclature which based on three isomers of kestose with three different connection way was put forward. The functional components of fructan could be refered accurately and specifically by the nomenclature system and structural formula and Chinese translation should be unified,thereby avoiding confusing and misleading,so document editing and retrieval could be accurate and efficient. That systematic Chinese nomenclature of fructan was implemented was of great significance for communicating with the same industry and promoting Chinese products to the international market and even synchronizing with international research.