Most of Xu Wei's calligraphy works handed down from ancient times are cursive, among which spring chives cut in the night-rain's Poem Axis, Ten Poems of Nufu Pavilion, Poem Axis of Poems on Sword should be made by cursive, Seven-character quatrains and a spring water axis, Seven-character quatrains and clouds axis, Spring Songs and Poems Axis of drizzle in the Seven-character quatrain garden. The strokes are thick and thin, the strokes are dry and wet, and there is no gap between the words and the line spacing. When you look at them, you can see them like clouds rolling, like storms, extravagance sweeping and breathtaking. There are no rules and regulations, only Xu Wei's rebellious, arrogant and arrogant catharsis.
Xu Wei's superb mastery of pen and ink and Wan Wan's unfairness between the lines triggered people's emotional agitation and thoughts, and conquered countless artists in later generations.