本文首先阐明以学生为中心的大学英语教学模式对英语教师的角色要求,然后详细分析思维导图作为一种教学工具的特点和优势,指出思维导图是促进教师实现角色转换的路径之一,最后本文以教学设计者、教学控制者、学习促进者三种教师角色为基础,就思维导图如何帮助教师有效实现多种角色的转换,达成有意义的教学提出可行性建议。 This paper first clarifies the student-centered college English teaching model of the role of English teachers, and then analyzes in detail the characteristics and advantages of thinking map as a teaching tool, points out that the mind map is one of the ways to promote teachers to achieve role conversion, Finally, based on the three teachers’ roles of instructional designer, instructional controller and learning facilitator, this paper discusses how to guide the teachers in the effective conversion of multiple roles and to make meaningful teaching to put forward feasible suggestions.