<p>Yttrium-stabilized zirconia (YSZ) ceramic coatings have excellent damping performance, which can reduce the vibration damage of aeroengine and improve the stability of aeroengine operation. There are abundant microscopic defect structures in YSZ coatings, but the mechanism of the influence of the microscopic defect structures on the damping performance has not yet been fully clarified. In this paper, a YSZ dislocation model is constructed by using Material Studio software, and the model is loaded and unloaded by LAMMPS software to calculate the damping loss factor of the microscopic defect model at different temperatures and analyze the energy change of the dislocation model under cyclic stress. The results show that the damping performance of the dislocation model originates from the internal friction mechanism between the dislocation structures when the strain direction is changed, and that the energy dissipation of the internal friction under cyclic stress provides a continuous energy consumption for the YSZ model, which is manifested as the damping performance of the coating. Furthermore, analyzing the energy loss ratio caused by dislocations under different temperature models demonstrates that an increase in temperature facilitates energy dissipation in dislocation models.</p>