本文通过对评介语写作过程社会-认知模型The Hayes’(1996)Model的评介,介绍二语写作理论研究的三大主流学派,以写作主题研究为基本视角,分析该模型在二语写作理论研究和元认知理论中的建构作用,指出元认知知识应体现在模型的长期记忆上,元认知/认知策略的使用应体现在模型的工作记忆上。广大英语写作教师和英语写作研究人员可利用该模型,进一步深入探讨二语写作过程的本质。 This article reviews the three mainstream schools of the theory of second language writing by reviewing the theory of the social-cognitive model The Hayes’ (1996) Model in the writing process of the writing process. The writing theme research is the basic perspective, and the model is analyzed in the second language writing theory. The role of construction in research and metacognition theory points out that metacognitive knowledge should be embodied in the long-term memory of the model, and the use of metacognitive/cognitive strategies should be reflected in the working memory of the model. The majority of English writing teachers and English writing researchers can use this model to further explore the essence of the L2 writing process.