Purpose This study aims to examine the systems and mechanisms at provincial level to develop health volunteers to improve health of the immigrant workforce in Ubon Ratchathani, Thailand. Design/methodology/approach This qualitative study collected data from document research and in-depth interviews with 22 concerned people who worked at policy and provincial levels to develop health volunteers to improve the health of immigrant workforce. Data were collected from May to July 2017. Then, content of the conceptual framework was analysed. The research objectives were examined and summary and induction analysis interpreted data from documents, observations and interviews. Findings Ubon Ratchathani has developed a Thai village health volunteer network to provide health care to immigrant workforce. This consisted of four systems and one supporting mechanism, namely, selection of health volunteer, knowledge management on primary health care, welfare management and moral enhancement and resource and budget support. Development is driven through the committee under the mechanisms of government agencies, i.e. the provincial public health office together with non-government organizations and network partners. Originality/value The findings from this study could help develop health volunteers to significantly improve the health of the immigrant workforce in the Thai health service system.

PurposeThe purpose of this study was to investigate the provincial-level systems and mechanisms to develop health volunteers to improve the health of the immigrant workforce in Thailand.Design/methodology/approachThis qualitative study obtained data from document research, in-depth interviews with 58 people involved at policy and provincial levels working to develop health volunteers to improve the health of the immigrant workforce. Data were collected from May–October 2017; then the content of the conceptual framework was analyzed, the research objectives were examined and summary and induction analysis interpreted data from documents, observations and interviews.FindingsThailand has four systems for developing health volunteers to improve the health of the immigrant workforce: recruitment, training and knowledge management, welfare and motivational and financial and other supportive resources. Development is driven through the mechanisms of the Provincial Public Health Office with Non Governmental Organizations (NGOs) and network partners. The health volunteer development exhibits two patterns: developing migrant workers to become migrant health volunteers and developing village health volunteers to perform health care for the immigrant workforce. All development patterns mainly rely upon the regular operating budget, which is often inadequate. Frequently, some provinces make attempts to seek other funding sources. In fact, health volunteer development is subjected to local authorities of the four provinces whose systems and mechanisms of development differ from one another.Originality/valueThe findings from this study could help develop health volunteers to significantly improve the health of the immigrant workforce in the Thai health service system.