The “motorcycles” that fill the streets can be seen as one of the many manifestations of Taiwan’s cultural diversity, which leaves a deep impression on tourists from abroad. The various styles and styles of motorcycles make consumers’ choices more diverse. Under the fierce competition in the current motorcycle market, motorcycle manufacturers have to think about what style of motorcycle design can better attract consumers to pay attention and buy. According to the current research on existing motorcycles, it is found that the discussion on the appearance of motorcycles is still incomplete. This study constructs the evaluation criteria with “sensory engineering” as the core, and selects 10 motorcycles under the Sanyang Group, the number one motorcycle brand in Taiwan, as stimuli. Through factor analysis and multivariate scaling analysis, this study found that the appearance image of the SYM motorcycle includes “manly”, “cool”, and “dynamic”. The common characteristics of the motorcycle appearance with these appearance images are that the front of the motorcycle is equipped with a front windshield, the lines of the front of the motorcycle are sharp, and the color matching is black and white. The contribution of this study is that it can serve as a reference for future research on motorcycle appearance design, and it will also serve as a reference for the development, design and improvement of future motorcycle appearance.