Lombok Regency is one of the zones with a high earthquake hazard potential in Indonesia. However, as an area located in that city, Dasan Beleq Hamlet, Gumantar village did not get any physical damage by the disaster in 2018. The customary system and local wisdom in building houses applied by the society supported their houses to have earthquake resistance. This study aimed to investigate the local wisdom portrayed in the Dasan Beleq traditional houses for earthquake mitigation purposes. This research was a descriptive qualitative study conducted from September to December 2020. The result showed that the local wisdom of the traditional houses was represented by their materials and construction techniques. Techniques for connecting ropes and pegs between poles, roof, poles, and floors were arranged using natural resources and settled semi-permanently based on some believed rules of building earthquake-resistant houses. The people also maintained the local wisdom and customary values by applying some special guidelines and rituals in the process of building their houses.