系统功能语言学在研究语言结构和系统的过程中主要关注语言的体现化和实例化,即语言的使用,可是对语言使用者的研究则相对薄弱。本文回溯系统功能语言学有关语言使用者的研究,评述不同系统功能语言学家对语言使用者的论述,提出以语言使用者为主的系统功能语言学理论框架,旨在阐释语言使用者在相同或相似情景语境中个体语言使用差异的形成过程。 Systemic functional linguistics focuses on language embodiment and instantiation in the study of language structure and system, that is, the use of language, but the study of language users is relatively weak. This paper reviews the research on language users of system functional linguistics and reviews the discussion of language users by different system functional linguists. It puts forward the theoretical framework of system functional linguistics, which mainly focuses on language users, Or the formation process of the difference of individual language use in similar context.