本文分析了当前大学英语教学改革的现状,并基于建构主义理论,探讨了PBL学习模式在大学英语教学中的应用,并以一个单元的课文学习为例提出了大学英语教学中利用PBL模式学习的基本思路和方案设计,通过教学效果分析指出,该学习模式是大学英语教学中提高学生综合素质和自主学习能力的行之有效的方法。 This paper analyzes the present situation of college English teaching reform and discusses the application of PBL learning model in college English teaching based on constructivism theory. Taking a unit of text study as an example, this paper puts forward the use of PBL in college English teaching The basic train of thought and program design, through the analysis of teaching effectiveness, points out that this learning mode is an effective way to improve the students’ comprehensive quality and autonomous learning ability in college English teaching.