Calligraphy features: vigorous structure, rigorous and meticulous use of words. Steady but not vulgar, risky but not surprising, old but not withered, moist but not fat, harmonious behavior and incomparable charm. The brush strokes are even, hard and thin, with exposed edges and corners, rich and diverse, so as to avoid monotonous repetition.
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 Meng.