This study is a network of emergency medical services outside of hospitals in the three provinces of  Khon Kaen, Nonthaburi, Ubon Ratchathani and Sa Kaeo provinces that has three objectives: 1) to study the operational processes of the network organization in Emergency Medical Services, 2) to study the effectiveness of the network organization in Emergency Medical Services, and 3) to present the models of the network organization in Emergency Medical Services right with Thailand that operated by Qualitative Research Methodology, In-Depth Interview, ...