Abstarct: In each structural zone, the process of changing forces and thus the direction and along the folds and the faults is different. Identification of faults in seismic data with complex structure and low seismic data quality is difficult. Therefore, there are different methods for this purpose in seismic data, in particular 3D seismic data. In this research, attempts have been made to investigate such studies using seismic attributes. Which seismic attrbutes include ways to identify geological structures and any disturbances and subsurface anomalies. A number of attributes have been categorized to determine horizons and faults. Envelop domain attributes, instantaneous phase, disorder and variance and among these attributes that with these attributes able to identify faults more accurately and consequently a better interpretation of the final model is possible. The purpose of this study is providing and interpreting a 3D geological model using seismic attributes combination in 3D seismic data in one of the southwestern oilfield of Iran. This structure model will include seismic horizons and faults.Given that faults in the studied field are of great importance in shaping the construction model of the region, and given the low quality, of seismic data in the region, the provision of a structure model that can accurately detect faults is important. Interpretation of the fault model in the studided field provides information that has a singnificant role in determining the reservoir characteristics through making the static model of the reservoir. Therfore, it is believed that the result of this research can help to reduce the uncertainty in describing the construction model in 3D seismic data. Due to the fact that sedimentary structures have an important role in the accumulation of hydrocarbon resources, therefore it is necessary that at the stage of exploration and development of the field, a three- dimensional model is prepared precisely from the structure of the region. Due to the complex structural of the area, the interpretation will usually will not be free of errors. Therefore, it is necessary to use other information to prepare the exact model. So, using the combination of seismic attributes, the model errors will be eliminated and a more precise model will be obtained, which naturally bring a more accurate interpretation. At this first stage, preliminary studies and geological survey of the study area carried out. Also 3D seismic data will be reviewed from any viewpoint. After that horizons related to each top formation from well data in cube of seismic data, the contour maps are selected, the time underground contour maps of the studied formations will be prepared. We concluded that using the combination of attributes improved the quality of the structure of the area.