His calligraphy, such as regular script "Yi Heming", Huanggu and Erwang, is fresh and beautiful. Later, he created a new calligraphy style called "six-and-a-half calligraphy" by referring to the wave of official script, the structure of seal script, and the brush of cursive script, which is mainly composed of kai, li, integrating kai, cao, li and seal script, and writing by painting, which is his bold and original creation in calligraphy art. His
handwriting is diverse, and the lines are similar to the bamboo he painted; Exaggerate in the structure to make the long and narrow words longer and narrower, wider and wider, and more oblique; In the layout of the composition, the size is scattered, the up and down, the left and the right respond to each other, and the density is alternating. The so-called "littering the streets" is full of rhythm and rhythm.
Zheng Banqiao's calligraphy appeared in the calligraphy circle of Qing dynasty, which highly praised the study of calligraphy, giving people a refreshing feeling. There are many couplets, banners, screens and other ink handed down from generation to generation.