The　buckling　failure　of　stratified　rock　slopes　intersected　by　a　set　of　steep　discontinuities　that　are　approximately　parallel　to　the　slope　surface　is　frequently　encountered　while　constructing　railways　and　roadways　in　mountainous　areas.　In　this　study,　an　analytical　approach　based　on　the　energy　equilibrium　principle　is　presented　to　solve　the　flexural　buckling　stability　of　stratified　rock　slopes　within　the　framework　of　multilayer　beam　theory.　The　generalized　Hoek-Brown　failure　criterion　is　introduced　to　reflect　the　influences　of　slope　size　(scale　effects)　on　the　buckling　stability.　Subsequently,　numerical　and　physical　modellings　from　previous　literatures　are　employed　to　validate　the　proposed　approach.　Furthermore,　a　practical　case　of　Bawang　Mountain　landslide　is　also　used　for　the　comparative　analysis.　The　study　shows　that　the　present　analytical　approach　is　capable　to　provide　a　more　reasonable　assessment　for　the　buckling　failure　of　stratified　rock　slopes,　compared　with　several　existing　analytical　approaches.　Finally,　a　detailed　parametric　study　is　implemented,　and　the　results　indicate　that　the　effects　of　rock　strength,　rock　deformation　modulus,　geological　strength　index,　layer　thickness　and　disturbance　degree　of　rock　mass　on　the　buckling　failure　of　stratified　rock　slopes　are　more　significant　than　that　of　rock　type　and　slope　angle.