This study applies the concept of mating mind-sets to the field of androgynous co-brand and attempts to examine the relationships among mating mind-sets, self-complexity, co-brand fit, and androgynous co-brand evaluation. Besides, this study also attempts to examine whether mating mind-sets moderates the effect of gender on androgynous co-brand evaluation. This study adopts experimental design to collect data and to examine proposed hypotheses. 290 recruited subjects are randomly distributed to any one of both mating mind-sets and non-mating mind-sets situation. This result shows that (1) Mating mind-sets, self-complexity, and co-brand fit positively influence androgynous co-brand evaluation. (2) Mating mind-sets positively influence both self-complexity and co-brand fit, respectively. (3) Mating mind-sets moderates the effect of gender on androgynous co-brand evaluation.