In today's society, people's demand for products is no longer limited to meeting rigid demands but emphasizes spiritual and psychological pleasure and satisfaction in the products purchased. Fun design for cultural and creative products rises in response to the proper time and conditions. In the fun design of cultural and creative products, the design of graphic patterns will give people a more intuitive aesthetic feeling. However, there is insufficient research on the expressive elements of fun graphic patterns in cultural and creative products. The purpose of this research is to study the key elements and the artistic functions shown in different fun design types by analyzing them in relation to different expressive elements based on the many types of graphic patterns in fun design in cultural and creative products. This study investigates and examines the four fun design types, namely, direct use, cartoonisation, symbolic use, and use conversion of graphic patterns in cultural and creative products, in combination with the seven fun design expressive elements, including transformation, deviation, optical illusion, reversal, association, exaggeration, and implication. It concludes that all seven expressive elements of fun design are expressed to a certain extent in graphic pattern fun designs of cultural and creative products. However, these expressive elements show differences in their use according to different graphic pattern fun designs.