A Zr-doped single-phase (Ni,Pt)Al coating was prepared on a Ni-based single crystal superalloy through electroplating Pt-Zr composite layer and subsequent gaseous aluminisation treatments. Hot corrosion tests of (Ni,Pt)Al and Zr-doped (Ni,Pt)Al coatings in Na2SO4/NaCl (75:25, wt./wt.) were conducted at 850 ºC in static air. The results indicated that the Zr-doped coating showed superior hot corrosion resistance to conventional (Ni,Pt)Al coatings, in which the enhanced performance is mainly attributed to the advantageous effects of Zr that interacts with S and Cl. The mechanism and role of Zr played in the corrosion test are discussed. Moreover, isothermal and cyclic oxidation behavior of the Zr-doped (Ni,Pt)Al coating samples were assessed at 1373 K in static air compared with normal (Ni,Pt)Al coatings. The results indicated that Zr-doped (Ni,Pt)Al coating demonstrated lower oxidation rate constant and reduced tendencies of oxide scale spallation as well as surface rumpling, in which the enhanced oxidation performance was mainly attributed to the favoring effects of Zr preferring to segregate at grain boundaries of oxide scale and improving Young’s Modulus of the coating. Besides, the addition of zirconium effectively delayed the oxide phase transformation from θ-Al2O3 to α-Al2O3 in early oxidation stage and the coating degradation from β-NiAl to γ'-Ni3Al in stable oxidation stage.