The study is about the general geology and landslide susceptibility mapping by using the Geographic Information System of Kampung Kuala Long. The coordinate of study area is located at (5° 43‘ 24.42‖ –5° 40‘ 46.05‖) N and (101° 44‘ 54.09‖ –101° 47'37.26‖) E. The purpose of the study is to update the geological map of study area and determine the landslide prone area within the study area. Geological map is produced by geological mapping, fieldwork observation and collecting the rock sample. The rock sample is collected then cut for thin section for petrography analysis. The potential of landslide susceptibility is detected by the data collected from certain parameter such as land cover/use map, lithology map, slope morphometry and rain distribution data in order to produce a geohazard map using Geographical Information System (GIS). The data collected and map produced is important to contribute for the understanding of study area and may assist for developer in future development