T This research area is located in “Melani” Field, Cipunegara sub-Basin, North WestJava Basin. The background of this research is because the importance of determining depositional environment in hydrocarbon exploration activity by learning and combining the characters of its field data. The purpose of this research were to determine depositional facies and depositional direction of second sequence order of Talang Akar Formation in study area. The data that used in this research were well log data and 3D seismic data. The methods that used were electrofacies,seismic sequence analysis, seismic facies analysis, and isopach mapping. Electrofacies analysis has been done by identifying well log data, then correlating all of well data based on similar ages. The seismic facies and seismic sequence analysis has been done by defining the boundary of sequence body then by using formula ((A–B)/C) to make facies seismic map. While isopach map was made to know where the main depositional direction. The result of electrofacies analysis was the depositional successions of Talang Akar Formation in study area which were distributary channel, delta plain marsh, delta front shale, and distributary mouthbar. In the other side, the result of isopach map showing the depositional direction was from southwest to north east.