Director of the Department of Audio-visual Education of Northwest Normal University Head of the editorial team of the national audio-visual education curriculum textbook China Vice President of the Audio-visual Education Association (now China Educational Technology Association) Vice President of the Gansu Provincial Education Association Consultant of the Educational Technology Teaching Steering Committee of the Ministry of Education of the Gansu Provincial Political Consultative Conference China Consultant of the Audio-visual Education Association Senior Professor and Doctoral Supervisor of Northwest Normal University School of Educational Technology and Communication, Honorary Dean of the College of Online Education, Editor-in-Chief of CSSCI core periodical "Audio-visual Education Research", visiting professor of more than ten universities including Beijing Normal University and South China Normal University, director of the Institute of Educational Science of Northwest Normal University, and the first director of Northwest Normal University Audio-visual Education Center.