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One of the areas in Cianjur Regency, which is the center of community activities, is Cianjur District. These community activities allow the Cianjur District area to experience massive urbanization and development to meet the growing demand for land increase. The purpose of this study is to analyze the spatial distribution of urban phenomena Heat Island (UHI) in Cianjur District and analyze the relationship between Land Surface Temperature (LST) and Normalized Difference Vegetation Index (NDVI) in Cianjur District. This research was conducted in the urban area of ​​Cianjur District with the use of data Landsat 8 for the analysis of the Urban Heat Island phenomenon using Land Surface data Temperature (LST). In addition, correlation analysis was also carried out to see the relationship between land surface temperature and vegetation density. Based on Land Surface data processing, Temperature in 2014 and 2021 showed that in 2014 10 Villages had a surface temperature above 30°C, so they experienced the Urban phenomenon of a Heat Island. The village consists of Bojongherang, Muka, Pamoyanan, Solokpandan, Sayang, Sawahgede, Mekarsari, Limbangansari, Nagrak, and Sukamaju. In 2021, the Urban Heat Island phenomenon will expand to all villages. Land Surface Temperature in Cianjur District has a robust negative correlation with NDVI good in 2014 and 2021. So, the denser the vegetation, the lower is land surface temperature and vice versa.