Considering the designs of the piezoelectric ceramic fiber layer using the macro fiber composite (MFC) material and the interdigitated electrodes, assuming that the piezoelectric ceramic fiber has the same polarization direction and setting the progressive voltage boundary conditions, the equivalent finite element model with MFC uniform piezoelectric layer has been established in this paper. The simulation of the structurepiezoelectric coupling field is carried out by ANSYSAPDL software to simulate the real deformation in its operation. At the same time, the numerical test of the free strain and blocking force is carried out to verify the finite element model numerically and modify the longitudinal piezoelectric strain constant d33 of the fiber. The accuracy of the model is verified by the numerical and experimental studies on the aluminum alloy cantilever beam with MFC actuator. Compared with MFC finite element model on the mesoscale, the proposed finite element model saves the calculation cost and can be applied to practical engineering. The experimental results show that the MFC excitation method has the features of simplicity for operation, good repeatability and high signaltonoise ratio when used for vibration characteric analysis.