Wu Changshuo first started his seal cutting work with Feihongtang Seal Pu, then transferred to the Zhejiang School, and later studied Deng Shiru, Wu Rangzhi, and Zhao Zhiqian. Wu Changshuo has been studying "Shigu Wen" for a long time. He once said, "I have learned seal script well and translated it into Shigu. I have been working on it for decades, and I have reached a state of perfection every day." He used calligraphy in his seals, which became an important feature of his seals. His seal style is the opposite of Huang Shiling's. It is a vigorous, so-called rough-dressed and messy seal style. The impression given to people is a kind of profound and majestic beauty. In addition to following the tone of majestic works such as "Stone Drum", he also adopted many methods in the use of tools and carving methods that had never been used by predecessors. For example, he used an "obtuse-angled" carving knife. He combined Qian Song's cutting and cutting technique with Wu Xizai's punching technique. Paying attention to the blunt force of the knife has become a special and novel method of using the knife. His seals can be seen as vigorous in beauty, rough and bold without losing the elegance. Wu Changshuo is unique in the history of Chinese seal studies and has distinctive personality characteristics. In terms of boldness and boldness, it is difficult for predecessors to compare. In terms of the maturity of his personal style, it is also rare in the history of seal studies.