Being located on a significant ring of fire, Indonesia inevitably experiences frequent volcanic eruptions in varying degrees. Disaster mitigation for volcanic eruptions continues to be developed to minimise risks, including providing emergency shelter to those affected by the events. A series of catastrophes associated with volcanic eruptions that occur over a long period of time often requires emergency shelters till it is safe to go back home or an alternative for a new living arrangement is available and ready. Therefore, it is necessary to pay attention to the design of emergency shelters to provide both physical and mental comfort to the refugees. In this case, ergonomic aspects become pivotal and deserve serious attention. This study aims to explore the concept of ergonomics in designing emergency shelters for those who are affected by volcanic eruptions. It uses descriptive qualitative methods with a case study of impacts inflicted by Mount Semeru eruptions of East Java. It found its analysis by a thorough literature review and prior studies. Study results include references for emergency shelters that are ergonomically designed and efficiently meet needs for comfort, health, and dignity.