This paper reports a case study of my self-development in applying Information Communication Technology （ICT） to teaching. I analyzed my own growth from three perspectives： technical confidence and competence, pedagogical development and self-efficacy. Classroom observation, interviews, reflective journals and questionnaires were used to explore how professional self-development occurred when I changed my teaching belief in teaching, and how I understood the development as a practicing teacher in learning by teaching. I participated in various projects based on action research in order to meet the challenges of the teaching reform in the new era. The results indicate that teachers can develop their informational quality and professional competence in applying ICT in teaching.
