The purpose of this study was to see the attitude and perception of the university students, the ones mainly responsible for supporting the elderly of the society in the future, toward dementia and problems of supporting the elderly. The study subjects were total 374 (male 131; female 243) university students selected from four 4-year colleges located in G city. A questionnaire was distributed and collected during the period of April-13 through May-30. The collected data were analyzed, using SPSS-WIN 12.0, in the methods of Frequency, Percentage, Mean, Standard Deviation, ANOVA, Scheff-test as post verification, Coefficient of Correlation, and Multiple Regression. The major findings of the study were as follows. 1) The students’ attitude toward dementia marked higher than the mean-average. And the students’ attitude about their supporting the elderly exhibited an upper-middle score, with the highest score on the supporting the elderly as a service but with the lowest as the emotional support. 2) There has been some difference in attitude toward dementia according to the students’ gender, major, having a religion or not, and having taken some classes concerning the elderly welfare; while some difference arose as to their supporting the elderly in the areas of the students’ major, having a religion, and experience of living with grandparents. 3) There has been a significant positive correlation between the students\' attitude toward dementia and their perception as to supporting the elderly. Especially, there was a high positive correlation between their emotional support of the elderly and their attitude, whether emotional or behavioral, toward dementia. And the emotional support of the elderly was the best predictor that indicates most clearly the students’ attitude as to dementia.