Root calligraphy uses the fibrous roots of plants as raw materials and constructs them according to their natural growth patterns, making them more suitable for the requirements of Chinese character strokes. The root spelling technique is used to make it more suitable for the requirements of Chinese character strokes and frame structure. That is to say, piles of roots are steamed in a pot, and then sections of roots are glued to the copied calligraphy. The thickness and length of the roots should be exactly the same as the original calligraphy. Finally, they are painted with varnish, and then it is