This paper mainly derived from the origins of the theory of constructivism, it’s basic ideas, and advocated teaching mode to analysis the constructivism , which is popular in western educational psychology. The author according to the status of current college English classroom teaching talks about constructivism theory enlightenment to college English classroom teaching, and points out that college English Teaching should pay attention to arouse students’ enthusiasm, should at the same time breaks in the study of cognitive process in the state of ‘balance’, in order to make learners of English learning activities to enter a virtuous cycle.