This study was aimed to assess the knowledge, attitude, and practice on the impacts of alcohol consumption among undergraduate university students in Malaysia. A descriptive cross-sectional study was used, and a total of 400 students were recruited for the study. The questionnaire was used as a study instrument which consisted of 5 sections. Google Forms were distributed to undergraduate students aged between 18 to 24 years, whereby their knowledge, attitude and practice regarding alcohol consumption and its impacts were accessed by a five point Likert scale. SPSS Statistic software Version 22 and Microsoft Office Excel were used to analyze the collected data. Based on the data collected, the findings of our research study regarding comparison of the knowledge about alcohol between medical and non-medical undergraduate students showed that all respondents have similar understandings of the impacts of alcohol consumption. The p value for questions on knowledge are higher than 0.05, which is not significant. And attitude and practice of impacts of alcohol consumption between medical and non-medical students were analyzed. The findings showed that there was no significant difference between the two respondent groups. However, comparison on knowledge on impacts of alcohol consumption between male and female students was statistically significant only in one question related to alcohol causes liver disease as the p value is less than 0.05 (p<0.05). The comparison on attitude and practice about alcohol between male and female were not significant (p>0.05).