At that time, people spoke highly of Deng's calligraphy, calling it "the best in the world with four bodies". His calligraphy is the most prominent in seal script, and the achievement of seal script lies in Xiao seal script. Taking Si and Bing as his teachers, his seal script is a little longer, but he creatively combined the brushwork of official script and boldly raised the ups and downs with long front and soft hair, which greatly enriched the use of seal script, especially in his later years. The lines are round and bold, reaching the realm, creating a typical seal script in the Qing Dynasty and making immortal contributions to the development of seal script art.