Wang Duo is well-read, with works in poetry and prose. He is knowledgeable in ancient times and has made great achievements in poetry, painting and calligraphy. In particular, his calligraphy is unique, and he is known as "Wang Duo" internationally. His calligraphy is as famous as Dong Qichang's, and he is known as "the king of South, East and North" in the late Ming Dynasty. His calligraphy is unconventional and relaxed, but it is full of free and easy and vigorous flowing. Wang Duo is good at cursive brushwork, vigorous and free and easy, dripping with fun. Dai said in the Postscript of Wang Duo's Cursive Poems: "(Mi Fei) is crazy about cursive writing, but his absolute thoughts are all about emotion. The sweeping of the floor in Wei and Jin Dynasties made him extremely happy and brave, which was beyond the reach of Zhao and Dong. " His ink has been handed down from generation to generation, and many calligraphy posts, letters and inscriptions have stone carvings, the most famous of which are Zhushan Garden Post and Langhuating Post.
Many people often complain about Wang Duo's character because he fell to the Qing Dynasty after the Ming Dynasty, and his character has many flaws. But his calligraphy is very popular in Japan, South Korea and Singapore. Wang Duo's calligraphy is very appreciated by the Japanese, so it developed into a genre called "Ming and Qing Tunes". His "Mountain Garden Post" was introduced to Japan and caused a sensation. They think Wang Duo is a first-rate calligrapher. Put forward the viewpoint that "the first king (Wang Duo) wins the first king (Wang Xizhi)".