Cao, a calligrapher, is a famous writer in China.

Cao, a calligrapher, is a famous first-line artist in China. People's Republic of China (PRC) professional qualification certificate, member of China Calligraphy Association, director of China Calligraphers Association and member of China International Calligraphers Association. Glorious Belt and Road China Certificate of Honor, Painter Certificate, Award-winning Certificate of China Calligraphy and Painting Creation Competition for the 20th anniversary of Hong Kong's return, and Certificate of Leader of Chinese Studies.