This pilot study examined the feasibility and acceptability of the HIV/AIDS self-management education program-Thai (HASMEP-T) for HIV-positive Thai men who have sex with men (MSM). The intervention HASMEP-T is a group-based adaptation of the evidence-based intervention, HASMEP. Participants were 40 Thai MSM living with HIV aged 18 years or older, recruited from an HIV clinic housed in a hospital in Thailand. Results support the feasibility of recruitment, screening, eligibility, and retention methods. The majority of the participants reported that the intervention was acceptable, and it met their initial expectations. Furthermore, all recruited participants in the intervention group (n=20) completed the intervention HASMEP-T. Overall, intervention group participants demonstrated significant increases in all aspects of HIV selfmanagement (p<0.05), as well as improvement on quality of life psychological domain (p<0.05). Our findings provide preliminary support for the large-scale, randomized-controlled trial of the efficacy of HASMEP-T to promote self-management behaviors among HIV-positive Thai MSM.