Ma Haijun, whose real name is Bolong, is also known as Ma Pingchuan. A native of northern Shanxi, he studied Wang and Mi calligraphy for more than 30 years at the age of eight, and studied under the Wutai Mountain monk. The works are magnificent, natural and unrestrained, full of ink and color, full of drunkenness, and measured in law, which is intended to imitate the wind of the ancients and show it to the world. In particular, the representative works of calligraphy "Dragon", "Tiger" and "Buddha" have been endorsed and recognized by calligraphy predecessors and collectors. Known as "ancient Tang Bohu, today there is Ma Bolong". It is also a dark horse in calligraphy. At present, he is a master of art signature design in China, and a specially invited calligrapher in Rong Baozhai, Beijing Painting Shop, Yunfeng Painting Academy and Hongbaotang. Calligraphers Association of National Development and Reform Commission invited calligraphers, consultants and visiting professors of Southwest University.

The price of calligraphy works ranges from 200 to 1000.