In order to study the influence of complex loads on the vibration characteristics of the integral blade disk,the vibration characteristics of the integral blade disk with thermal barrier coating were studied based on the thermal-fluid-structure coupling method.The integral disk model was simplified,the blade surface was coated with thermal barrier coating and the flow field model of the integral disk was established.The thermal-fluid-structure coupling method was used to simulate the aerodynamic load and temperature load on the surface of the integral disk in Fluent.Finally,the vibration characteristics of the whole blade disk under different working conditions were analyzed by prestressed modal analysis.The results show that the centrifugal load has the greatest effect on the natural frequency of the integral disk,while the temperature has the least effect;in contrast,under different working conditions,the temperature load has no effect on the number of resonance points of the integral disk,while the aerodynamic load increases the number of resonance points of the integral disk.