There are only seven volumes of Xuanhe Neifu in the Northern Song Dynasty, and only one volume in the Southern Song Dynasty. Only the first two lines of the ink in the handed down "True Grass Thousand Characters" are broken, and the others are still intact; As for the missing part, it has also been completed according to Guan Zhongshu. The so-called "Guanzhong Edition" was carved by Xue in Daguan Guchou (A.D. 1 109) according to the original works collected by Chang 'an Cui Shi in the three years of Daguan in the Song Dynasty. Also called "Shaanxi Edition". Today, the original stone carvings still exist in the forest of steles in Xi 'an. It is said that it is "quite exquisite and has no resentment", which can be said to be a rare version, but compared with ink. True cursive thousand-character writing is rigorous and meticulous, and cursive writing is divided into different characters. It is good at brushwork, and there are still ancient meanings in elegance. Its books are warm and beautiful. In Song Dynasty, Mi Fei's "Famous Sentences of Haiyue" commented: "There are thousands of words of wisdom and courage, which are beautiful and vivid in all aspects." Another example is Su Shi's comment: "Fine can be achieved, but the return is sparse." This book represents the style of Wen Ya, a southern calligrapher in the Sui Dynasty, inherits and summarizes the structure and cursive style of the "two kings", and establishes its exemplary role in style.