In order to ensure the safe work of superalloy blades in extreme environment, a hard coating is usually applied to improve the performance of erosion resistance and high temperature resistance. In this paper, the vibration characteristics of hard-coating superalloy blades are studied, and the finite element models of blades considering anisotropy characteristics of coating are established. By modal analysis, the natural frequency of the hard-coating blade was calculated. The vibration displacement response was studied through harmonic response analysis, and the resonance characteristics were analyzed by drawing camber diagram. Finally, the influence of hard coating thickness and coating method on vibration characteristics of superalloy blade was obtained. The results show that the hard coating can significantly reduce the blade response peak value, up to 36.8%; and the number of resonance points is reduced from 3 to 2 near the blade working rotation speed. It can be found that the hard coating has obvious damping effect on the superalloy blade.