The influence of NiCrAlY coatings prepared by low-pressure plasma-sprayed (LPPS) and electron beam physical vapor deposition (EB-PVD) respectively on the damping properties of ICrl8Ni9Ti alloy were investigated. The results shown that, compared to uncoated sample, the damping capacity of NiCrAlY coated samples has been improved significantly. The Q(-1) value of the coated samples was approximately 0.008 similar to 0.01 in range of 20-300 degrees C.The interface adhesion state has a distinct effect on the coatings' damping characteristics. The dynamic Young's modulus of the coated samples decreased compared to the uncoated substrate; and LPPS coated sample's dynamic modulus was lower than that of EB-PVD coated sample. Such difference resulted from different coating microstructure and interface adhesion morphology.