This study aims to determine the impact of road infrastructure development on the economic activities of the community in Tanjung Village, Tanjung District, North Lombok Regency, before and after the development of the road infrastructure. This research is a qualitative study using a case study approach. The informants in this study numbered 15, consisting of 13 key informants, 1 main informant, and 1 supporting informant. The technique of selecting informants in this study used purposive sampling with several criteria. This study used primary data from interviews with informants. The methods used in this research were observation, interviews, and documentation. The results of this study, based on interviews with 15 informants consisting of 13 key informants, 1 main informant, and 1 supporting informant, concluded that the development of road infrastructure in Tanjung Village has had a significant impact on the development of the local community's economic activities local businesses such as chicken noodle businesses, satay traders, cucur cakes, cilok, putu cakes, martabak and other businesses . The majority of informants stated that the road construction was highly beneficial for the community's economy. Improved access increased the mobility of residents, facilitated the distribution of goods, and overall enhanced business efficiency and productivity. However, two informants felt that the development hindered their economic activities, particularly due to negative impacts such as the relocation of stalls and the lack of government support during the construction process.