Normal college students as a teacher of the people in the future, a high level of information literacy is the inevitable requirement to adapt to the development of education information, Hierarchical-based experimental teaching provides a new way for us to enhance the cultivation of information literacy. Author of the computer and computer network maintenance based on stratified teaching in experiment course teaching theory, through three rounds of action research develop and improve implementation process of stratified teaching in the experimental course. The aim of stratified teaching is mee...