Objectives: This study investigates the drinking state of the homeless, including the factors that influence this state, and therelated services that the homeless require. Methods: A total of 163 adults residing in homeless shelters in Incheon, wererecruited from November 15 to December 28, 2013. The Korean version of the Alcohol Use Disorders Identification Test wasused. The data collected were analyzed using descriptive statistics, ANOVA, chi-square, and logistic regression. All analyseswere conducted using SPSS 18. Results: Among the respondents, 59.5% engaged in normal drinking, 17.2% engaged inproblem drinking and 23.3% suffered from high risk drinking. Alcohol Problems of homeless were found to increase alongwith total drinking periods. And high risk drinker were more likely to have 3.2 times of loneliness, 6.5 times of insomnia,and the reason for homeless is alcohol problem 14.0 times higher. Conclusions: Alcohol problems among the homeless arechronic and difficult to solve through temporary measures and short-term interventions. Therefore, the development ofappropriate services and policies for the homeless is important. The results of the study can be used as a basis for thedevelopment of management measures tailored to the distinctive needs of the homeless.