Cao Hongxun (1846–1910), also spelled Zhongming, Zhuming, Lansheng, and Ming, yijianzhai, was a native of Weixian County, Laizhou, Shandong (present-day Weicheng District, Weifang). In 1876, he became the 102nd champion of the Qing Dynasty, and also became the first champion of Weixian County since the imperial examination, and after the middle grade, he was appointed to the Hanlin Academy to revise and take charge of the revision of the history of the country.
Cao Hongxun is famous for his calligraphy, and many ink stone carvings have been left in the Forbidden City, summer palace and Weifang in Beijing.
Cao Hongxun is good at calligraphy, calligraphy and European style, old Yi Hun Simple, and Gong Han Li. His calligraphy is swift and fast with the pen, dashing and refreshing, the body is flowing, the staggered is there, the grass is like the sky and the sky is thousands of miles a day, the super implication is dangerous, the pen is even more flying, and the pen is even more continuous, with the rhyme of majestic and crazy indulgence, reflecting the typical style of his calligraphy.