The aim of this paper is to determine the stability and to propose preliminary rock cut slope protection and stabilization measures for Paleocene to Middle Eocene Trusmadi Formation along Marakau-Kigiok in Ranau, Sabah, Malaysia. Trusmadi Formation is slightly metamorphosed and dominated by interbed of sandstone with quartz vein (metagreiwacke), metamudstone, shale, slate, sheared sandstone and mudstone which can be divided into four (4) geotechnical units i.e. arenaceous unit, argillaceous unit, interbedded unit and sheared unit. Eleven (11) slopes were selected for this study. Geological mapping, discontinuity survey, kinematic analysis and prescriptive measure were used in this study. Results of this study conclude that the potential modes of failures are planar and wedge. Terrace, surface drainage, weep holes, horizontal drain, vegetation cover, wire mesh, Shotcrete, soil nail, weep hole, slope reprofiling and retaining structure are proposed protection and stabilization measures for the slope in the study area.