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Background & Objectives: University students' binge drinking behavior can lead to blackouts, and frequent blackout experiences can lead to long-term brain damage and alcoholic dementia. This study aims to analyze the drinking characteristics related to the experience of blackout due to heavy drinking among university students. Methods: This study conducted an in-depth analysis of the health survey results on 2,677 students entering a dormitory at a university in April 2017. Based on this information, we performed multivariate logistic regression analysis to find the difference in drinking-related factors related to blackout experiences after drinking by gender and grade. Results: The drinking-related factors associated with university students' blackout experience after drinking were grade, monthly binge drinking, regular walking, regular aerobic exercise, the experience of alcohol-related impairment or injury in the past year, academic difficulties due to drinking in the past year and experience of being advised not to drink from others in the past year. Alcohol-induced blackout by gender and grade showed statistically significant differences by drinking-related factors(p<0.05, p<0.01, p<0.001). Conclusion: The results of this study showed that college students' blackout experiences after drinking had unique characteristics. In the future, it needs to introduce a college health survey that can systematically collect drinking-related factors of university students and perform continuous monitoring.