Micro-teaching is a kind of system approach that is used to train normal students and in-service teachersteaching skills which is based on modern teaching technology.It can form the trainees of certain professional skills with practices, can also mastery the possession professional skills through the whole teaching process, make sense of each step, each activity, and even every detail of teaching.Teaching ability of normal students is the base on the development of its after post.Micro-teaching is one of an important way to train students teaching skills in normal university, in the process of running, the shortage of resources of micro-teaching and insufficient classes become the most common problems in normal university, this article analysis this problem and put forward the training method of group cooperative learning.It shows that uses the training method of group cooperative learning can improve students teaching skills by practical application.