Mi Fei was a famous calligrapher, painter and writer in Song Dynasty, and his calligraphy was the highest in running script. Shu Sutie, his masterpiece, is a calligraphy work with running script, which is known as "Mi's first running script". His works, with their unique style, exquisite skills and profound cultural connotations, have become classics in the history of calligraphy in China, and have had a far-reaching impact on later calligraphers.