The article discusses a new method for designing product appearances by focusing on human-machine interaction. The researchers developed a design model that combines function, behavior, and structure to improve product appearance design. They also integrated technology like computer-aided design to enhance the process. This approach aims to create more user-friendly and visually appealing products. The study suggests that this creative design theory can lead to advancements in CAD software systems and product design and manufacturing. The researchers also analyze the future trends in design thinking based on human-machine interaction technology.