Xu Dehua (1940~) is also known as Qingqing, with the courtesy name Longshi and the nickname Yisu. A native of Zhuji, Zhejiang. He is a member of Zhejiang Provincial Calligraphers Association, a member of Zhejiang Yixian Painting and Calligraphy Academy, a member of Hangzhou Indian Friends Association, a specially appointed calligrapher and painter of the Cultural Market Development Center of the Ministry of Culture, a director of the Education Committee of the Chinese Calligraphy Art Research Institute, and a specially appointed calligrapher and painter of the Chinese National Culture Research Institute.