T The area of West Java Province is a region with a high level of vulnerability to land movements in Indonesia. Sumedang Regency as well as the research area has a low to high level of soil movement. Administratively it is located in the eretan and surrounding areas, Jatigede District, Sumedang Regency, West Java Province. Based on the geological and geological conditions of the engineering materials the research area is divided into six engineering geological units, soft weathered rock units (SW), medium weathered rock units (MW), high weathered rock units (HW), sand gravel - perfect gravel units (CW ), residual soil units (XW), and alluvial sediment units. To find out one of the factors in the occurrence of soil movements, infiltration analysis can be carried out using infiltrometer double ring and measurement and calculation. The purpose of this study was to determine the infra-zation zone in each lithology in the study area. The analysis was carried out by the infiltration method using the infiltration calculation of the kostiakov equation to obtain the value of the final infiltration rate in the study area. The results of these data show the diversity of the rate of infiltration rate at the surface of the ground, the infiltration zone of the tuffaceous breccia group at 0.0287 - 0.8375 cm / minute, the infiltration zone of claystone group, at 0.2754 - 0.6315 cm / minute and absorption zone the volcanic breccia group of sandstone inserts was 0.0852 - 0.2482 cm / minute. The final infiltration rate value (f) is very diverse, ie from the lowest value of 0.0852 cm / minute (5.11 cm / hour) to the highest of 0.8375 cm / minute (50.25 cm / hour). So that it becomes a reference to determine the level of saturation of water on the ground and the ability of the soil when passing water into the soil.