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The Cao Quan Stele is officially known as the "Stele of Cao Quan, the Prefect of Heyang in the Han Dynasty" and was erected in the second year of the Zhongping period of the Eastern Han Dynasty (185 AD). Wang Chang, Wang Bi, Wang Li, Qin Shang and others jointly raised funds to carve this stele in memory of Cao Quan's achievements as the prefect of Heyang, and the inscriptions were written by Wang Chang and others.

This stele has extremely high artistic achievements in calligraphy and is a classic work of official script in the Han Dynasty. Its calligraphy style is elegant and graceful. The strokes are round and smooth, with natural changes in thickness. The starting and ending strokes are vivid, and the wavy strokes are stretched gracefully. In terms of structure, the characters are mostly oblate, with a stable center of gravity, symmetrical on the left and right and echoing each other, presenting a harmonious and elegant aesthetic feeling. The overall layout is open and well-arranged, giving people a fresh and beautiful feeling. The Cao Quan Stele is an important model for learning official script, which has a profound impact on the development of official script in later generations. Many calligraphers have drawn artistic inspiration from it, and it occupies an important position in the history of calligraphy.

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