In　this　study,　sulfated　zirconia　with　loading　of　platinum　(Pt)　and　platinum　alumina　(PA-Al2O3)　promoted　sulfated　zirconia　(SZ)　catalysts　were　synthesized　by　hydro-thermal　route.　The　samples　were　characterized　by　XRD,　BET,　FT-IR,　NH3-TPD,　and　TGA.　The　catalytic　efficiency　of　all　the　synthesized　catalysts　was　tested　on　the　isomerization　of　n-butane.　The　results　indicated　that　the　conversion　of　n-butane　(71.04%),　selectivity　to　i-butane　(98.96%),　and　yield　of　i-butane　(70.30%)　is　significantly　high　for　PA/SZ　sample　than　that　of　Pt　modified　SZ　and　bare　SZ.　The　results　of　this　study　suggest　that　the　SZ　modified　by　Pt/Al2O3　(PA)　provided　better　catalytic　performance　and　higher　stability　(within　25　h　of　TOS),　when　compared　with　SZ,　and　Pt-modified　SZ.