Background: There has been a big challenge facing hospital management in dealing with migrant patients with HIV/AIDS as a result of insufficient health care workers and increased hospital budget. This study aims to analyse the current situation and to propose a management model on service delivery among HIV/AIDS migrant patients in a hospital setting. Methods: A qualitative research method was conducted at Samut Sakhon province using in-depth interviews and focus group discussions (FGDs) with 32 key informants from hospitals, provincial health offices, non-government organizations (NGOs) and health policymakers. The context, input, process and product (CIPP) framework was applied to analyse the current situation and the findings from the strengths, weaknesses, opportunities and threats (SWOT) analysis helped design a management model of HIV/AIDS care. Results: A HIV/AIDS management model was developed, consisting of key components in three levels: national enforcement of migrant registration, provincial migrant data centre and HIV/AIDS service integrated in community. This model would help administrators reduce financial burden and improve clinical outcomes. Conclusions: To enhance HIV/AIDS service delivery for migrant workers, data management and follow-up system on treatment continuation along with participation of multiple stakeholders including government, provincial health offices, public and private health care setting and international institutions are required.