In 2003, he was transferred to the Art College of Tianjin Normal University to teach. Published "Five-Step Method for Learning Calligraphy in Regular Script". The paper "Five-Step Methods for Teaching Calligraphy" was selected for the Second National Calligraphy Teaching Symposium.
In 2004, Hong Kong Phoenix TV and Tianjin TV *** jointly recorded Cao Baikun’s feature film. In the "Famous Teachers and Famous Courses" column of Tianjin TV Station, he lectures on the five-body calligraphy of "Zhuan, Li, Kai, Xing and Cao". "Chinese Calligraphy" made a special introduction on "Just work, no matter what the harvest". Published "A Brief Explanation of the Eighty-Four Methods of Regular Script Structure" and "Learning to Write Fan Mottoes".
In 2005, "Character Analysis of Lanting Preface" was published. Won the highest award for the third Tianjin Higher Education Research Paper.
In 2006, he published "Zong Heng Tan on Wu Ti Shu".
In 2007, "New Interpretations of the Thirty-Six Methods" was published.
In 2010, he wrote the inscription for Gamebar’s latest stand-alone game Gu Jian Qi Tan.