Drug store shopping has always been a must-trip for Taiwanese citizens to travel to Japan. Cosmeceuticals are also a major gift for the people. This study intends to use canonical correlations to explore the motivation and leisure benefits of tourists purchasing Japanese cosmeceuticals and the relationship between them, so this is the main variable for a canonical correlation study. A total of 381 valid samples were collected by the questionnaire survey in this study. The empirical study found that: (1)There is a canonical correlation between the motivation of tourists to purchase Japanese cosmeceuticals and leisure benefits. (2)Tourists of different backgrounds have significant differences in the motivation and leisure benefits of purchasing Japanese cosmeceuticals. In general, the motivation and psychological benefits of female tourists buying Japanese cosmeceuticals are significantly higher than that of men. Most of the purchase items and the best ones were considered to be pharmaceuticals, but actual research found that the health benefits of health foods were higher than those of pharmaceuticals. The psychological benefits obtained from the purchase of Japanese cosmeceuticals are significantly higher than the physiological benefits. Visitors generally like Japanese cosmeceuticals suitable for gifts and for their own use. This may be the reason for the unmistakable trend of buying Japanese cosmeceuticals when traveling to Japan. This study suggests that tourists do not have to expect too much of the physiological benefits when purchasing Japanese cosmeceuticals. The industry must design for female groups in the marketing of cosmeceuticals in order to consolidate the main customer base.