In rock mass assessment, one of the most crucial factors to consider is the discontinuity, which significantly influences the behavior of the rock mass. Therefore, proper assessment of discontinuity is essential. The roughness of discontinuities is a major property affecting the shear behavior of the rock mass and the flow characteristics of fluids within it. This study analyzed the roughness and anisotropy of roughness of discontinuity using 3D profiles obtained through photogrammetry. Six discontinuities present on the outcrop were selected for the assessment. The 3D model was generated using Bentley software Context Capture, based on multiple digital images taken with a smartphone at different angles. To validate the accuracy of the generated 3D discontinuity profiles, a comparative analysis was conducted between the profiles measured with a profile gauge and the extracted profiles from the generated 3D model. Lastly, the roughness along different directions for each discontinuity was estimated. This analysis revealed that among the six discontinuities, two exhibited a large anisotropy ratio, exceeding 1.3.