Abstract: The fact that library1.0 changes into library2.0 is a technology update,but also is a concept change.In library 2.0 time,document retrieval course teaching should establish a student-centered thinking,let students actively participate the whole teaching process for improving the teaching effect,and should take advantage of new technologies to strengthen the construction of teaching resources,and perfect the teaching contents.

Key words: library2.0; document retrieval course; teaching paradigm