Liu Gongquan's calligraphy is famous for regular script. He learned from Wang Xizhi at first, and later visited the famous calligraphers in the Tang Dynasty. He absorbed Yan Zhenqing's strengths and new ideas, and created his own unique "Liu Ti", which was famous for its infinite strength and was later known as "Yan Gu". It is also called "Yan Liu" with Yan Zhenqing, and "four masters of regular script" with Ou Yangxun, Yan Zhenqing and Zhao Mengfu.
The secret of Liu Gongquan's calligraphy practice is to study hard and practice hard. There is a folk story that there was a river ditch where Liu Gongquan lived when he was a child. At the river ditch, there is a naturally formed "inkstone platform". Look carefully, the stones at the bottom of the river are also a little black. This is the result of Liu Gongquan's "writing eight jars of water, inkstones stained with black pools".