The paper aims to help the product stand out from many packaging designs with interesting packaging design, promote product sales, conform to user psychology, and further meet consumers' spiritual needs for packaging design. The characteristics of consumer psychology are explored, and consumer psychology and some design cases are taken as the entry point to provide reference for interesting packaging design. In the process of packaging design, designers should use exaggerated methods for interesting design, bionic methods for interesting design, and isomorphic methods for interesting design based on user psychology. Designers should not only promote consumers to have purchase interest, but also carry out creative and interesting decorative design.