In this study, a semantic network analysis was conducted to analyze direct, fundamental ideas about AIDS. We analyzed ‘National Survey on HIV/AIDSKnowledge, Attitudes, Beliefs, and Behaviors in the General Population, 2017’ released by the KCDC(Korea Centers for Disease Control and Prevention). In awareness of AIDS, key words such as sexual life, infection,fear, death, sexually transmitted disease and incurable diseases are playing an important role. According to the result of Subgroup analysis, AIDSawareness can be divided into ‘AIDS infection caused by blood’, ‘A negative thinking of abnormal sex’, ‘Fear of death from AIDS’, ‘Backwardness ofAIDS’. Finally, the link between the key words of AIDS is no significant difference depending on the level of knowledge about AIDS. Based on theseresults, implications for the planning of AIDS prevention campaign and message strategy were discussed.