本文分析了教师专业发展的知识结构及现实需求，借助校内“L-D-D-R-C”和校外“G-S-L-S”发展共同体，通过教师教育信息中心打造一个专属平台、一个特藏室、一个云课堂、一个行知空间，构建校内校外、职前职后相结合的立体化服务模式。该模式将打破基础教育学校教师专业发展资源不足的困窘，促进职前、职后专业发展各阶段的衔接与融合，提升图书馆数字化服务能力。

This paper analyzes knowledge structure and practical needs of teachers' professional development，with the help of "LDDRC" on campus and "GSLS" development community outside school, and through the teacher education information center to create an exclusive platform, a special library, a cloud classroom, a knowledge space, building a threedimensional service model combining oncampus and offcampus, prevocational and postemployment posts. This model will break the embarrassment of insufficient resources for professional development of teachers in basic education schools and promote the convergence and integration of preservice and postprofessional development stages. It can improve digital service capabilities of library.