Historically, mysterious characters were popular and circulated among women in Jiangyong County, Hunan Province, China and its neighboring counties, Dayaoshan in Jianghua Yao Autonomous County and parts of Guangxi, and men could not understand the meaning of these characters. However, with the development of the times and the improvement of women's education, women's books are facing extinction. At present, women's scripts are basically only used by some rural elderly women and are on the verge of extinction. 1982, Professor Gong Zhebing of Wuhan University discovered female calligraphy in Jiangyong County, Hunan Province, which shocked the world. Nvshu, strictly speaking, should be called "Nvshu", that is, women's writing, is a strange set of Chinese characters. It is unique not only in symbol form, recording language, marking language and means, but also in popular areas, social functions and inheritance history. Nvshu is popular in Xiaoshuigu, Jiangyong County, Hunan Province, and is still used by some elderly women. There are several local stories about the origin of women's calligraphy. One of them says: Since ancient times, women in Xiaoshuigu, Jiangyong like to get together to weave and embroider. They can't go to school to learn male characters (they call square Chinese characters male characters). In order to write down their sufferings, they jointly created such characters on the basis of weaving embroidery patterns. Nvshu is born out of square Chinese characters and is a variant of square Chinese characters.