Li Yu was a famous scholar of creation practice in the late Ming and early Qing dynasties.Most of his creation practices and theories were included in his book"Xianqing Ouji".In this paper,the author systematically combs and inter-prets his creation practice,analyzes the functional view of things,the economic view of proper use,the creation view of nothing new,the people-oriented design view,and the aesthetic view of elegant people,and summarizes Li Yu's creation thought.