KienGiang province of Vietnam is the west coast of Mekong Delta, Vietnam where RachGia city is the provincial capital. In recent years due to impacts of climate change and extreme weather, the city’s urban infrastructure has been affected by saline intrusion, flooding, collapsed house, etc. Modeling remote sensing is useful to determine rainfall. Climatic factors are affected by temperature, wind, rain, drought that people feel comfortable or not comfortable in the area because the planning and management are not well. The application of Geographic Information System (GIS) technology has supported the method such as analysis, overlap the urban infrastructure and climate change impacts layers to produce the assessment that will support urban management. The objectives of this study is to assess the impact of climate change on some of RachGia’s infrastructures through the analysis of a number of thematic maps created from GIS Database. The database will be used by local agencies in urban management and development which take into account the climate change.