Wu Changshuo was a famous painter and calligrapher in Qing Dynasty. He loved seal cutting all his life, and seal script was the basis of seal cutting. He copied all his life, broke the "two Li" pattern, and innovatively adopted the side-tied characters on the basis of Deng Chuan, forming a vigorous, heavy, simple, vigorous and powerful calligraphy style. This not only has a great influence on his seal cutting, but also has a far-reaching influence on later generations. Therefore, the seal script copied by Wu Changshuo is Shi Guwen.