The current study investigated the effects of modifiable factors—alcohol abstinence self-efficacy, negative emotions, communication skills, and self-reflection—on alcohol abstinence intentions of 139 inpatients in South Korean psychiatric hospitals. Correlations between alcohol abstinence intentions and each factor were analyzed, and a hierarchical multiple regression was used to assess the relationship between alcohol abstinence intentions and general characteristics. Alcohol abstinence intentions were statistically significant among inpatients with a spouse (
p
= 0.018), higher education (
p
= 0.031), employment (
p
= 0.009), younger age (
p
< 0.001), and fewer admissions from alcohol use disorder (AUD) (
p
< 0.001). In addition, communication skills (
p
< 0.001) and self-reflection (
p
< 0.001) were predictors of alcohol abstinence intentions. Results confirm communication skills and self-reflection are modifiable factors that significantly contribute to increasing alcohol abstinence intentions among inpatients with AUD. Providing interventions that improve communication skills and self-reflection would help maintain alcohol abstinence and prevent relapse. [
Journal of Psychosocial Nursing and Mental Health Services, 59
(12), 23–32.]