This paper presents the results of systematic analysis of joints trends in the rock masses exposed in the stretch between Al-Rawnah and Al-Huriyah areas, northwest of Taiz city, Yemen, using Fabric-8 software technique. From the field investigations and structural relations between the various lithounits, the exposed rock masses in the study area are classified into four litho-tectonic units viz., from bottom to the top:1) basement rocks, 2) Amran limestone rocks, 3) Al-Tawillah sandstone rocks and 4) volcanic rocks. Results of the study indicate that the rock units of the study area are cut and deformed by NNW-SSE, NE-SW, WNW-ESE, N-S, and E-W trending joints. NNW-SSE and NE-SW trends are the most predominant trends influencing the rock units of the study area. The dominant and major NNW-SSE trend correlates to the direction of the maximum extensional stress associated with the Red Sea rift system, while the second one (NE-SW) is perturbed regional stress field related to the direction of the stress generated during the opening of the Gulf of Aden. The basement rocks are commonly affected by both vertical and conjugate joints. The conjugate joints are represented by X and Y types, although T and H types were also recognized. Amran limestone rocks are affected by subvertical joints in addition to asymmetric with symmetric joints of veins filled by calcite minerals. Orthogonal cross joins, conjugate joints, polygonal joints and exfoliation joints were documented in Al-Tawillah sandstone rocks. Columnar jointing, plumose structures, horsetail fractures, kink joints and exfoliation joints are commonly observed in the volcanic rocks. This study indicates that the fracture spacing, orientation and thickness of the rock mass and patterns of fractures are controlled by lithology and structural evolution of the study area.