We　are　concerned　with　the　time-asymptotic　stability　of　planar　rarefaction　wave　to　a　non-conservative　viscous　compressible　two-phase　flow　in　two　dimensions.　In　this　paper,　we　show　the　planar　rarefaction　wave　to　a　non-conservative　viscous　compressible　two-phase　model　is　asymptotically　stable　under　small　initial　perturbation　in　H-2.　The　stability　result　is　proved　by　the　energy　method.　(c)　2021　Elsevier　Inc.　All　rights　reserved.