This paper includes the use of aerial images captured by a metric camera to build digital 3D models because these models have evolved greatly and increased the demands to meet the requirements of many applications. The reliability of these models depends mainly on the data processing methods, the approved tools for the solution, and the data quality. Where the automatic method was used in this research to process data, determine the three-dimensional coordinates and extract the three-dimensional model. Several programs can be used to process data and determine 3D coordinates such as Agisoft Photoscan. The results were evaluated on the basis of statistical methods in order to assess the accuracy and reliability of the results of the Agisoft Photoscan software for exact 3D modeling applications. To that aim, the study was carried out by an airborne metric camera with a height of 457 m at the University of Baghdad in Baghdad City. The evaluation was carried out based on the height of several buildings in the study area to assess the accuracy of the final 3D digital model. Whereas the overall accuracy of the 3D model dependent on the RMSE was (0.3014 m).