This study was undertaken to observe the influence of the model image and self-image congruence of consumers in Korean cosmetic advertisements on the advertising attitude and analyze the relationship between self-image congruence and advertising demand type, participation, and advertising effect, and to help develop plans to more effectively communicate advertising images. The experimental design of this study was 2 (self-image congruence: consistency vs. inconsistency) × 2 (advertising appeal: rational appeal vs. emotional appeal) × 2 (involvement: high vs. low) three-way ANOVA. The results of the study showed that the interrelationship between self-image congruence and advertising appeal type and involvement played an important role in determining the advertising attitude. More specifically, firstly, the self-image congruence of consumers in Korean cosmetic advertising affected the advertising attitude. Secondly, in the advertisements of Korean cosmetics, consumers preferred a rational advertising appeal to an emotional advertising appeal. Finally, statistical results showed significant differences in the influence of the interaction effect of the self-image congruence status of consumers and the advertising appeal on the attitude of advertising. The Korean cosmetic involvement of consumers had a significant impact on whether the Korean cosmetic advertising model image and consumer self-image were consistent with the type of advertising appeal and on the interaction effect of advertising attitude.