Based on the analysis of the teacher professionalism development,this paper introduces the idea and method of knowledge management into the field of teacher professionalism development in distance education,and discusses the teacher learning community which is based on knowledge management in distance education.

With development of the Internet technology and perspectives on knowledge and learning,a new kind of mode------on-line teacher learning community ------that teachers can participatein is coming into being .

This thesis aims to explore whether a traditional Lesson Preparation Group (LPG) in a high school in the current situation can develop into a teacher learning community which facilitates teacher development.

On the Efficacy and System of a Teacher-Learning Group;

The structure of teacher learning strategy has been discussed,with the investigation of 523 primary and secondary middle school teachers,applied the Teacher Learning Strategy Questionaire developed by researchers.

Research on connotation of teacher learning demonstrates that connotation of teacher learning is multiple.

Research on teacher learning in western countries has had some changes since the 1980s.

The investigation of teachers learning state,learning type and the influential factors in a school in Shenzhen shows their respective characteristics in learning types,though there are problems existing.

The school management to benefit the teachers learning is of the functions to excavate, guide and communicate.