<p>Magneto-electro-elastic (MEE) materials with integrated sensory and actuation functions have promising application potentials in the spacecraft and automotive engineering. The deformation of MEE structures in temperature varying environments leads to a thermo-magneto-electro-elastic coupled problem. However, most studies considered temperature changes as a thermal load. This unidirectional coupling misses thermal changes due to structural deformations. This study establishes a thermo-magneto-electro-elastic fully coupled finite element (FE) model for MEE plates based on the first-order shear deformation (FOSD) theory. The proposed eight-node Serendipity plate/shell elements for MEE structures incorporate five displacement DOFs per node, and one electric, one magnetic and one temperature DOF per element. The present FE model is first analyzed for mesh convergence. Subsequently, the static and dynamic responses of MEE plates under mechanical, electric, and magnetic loads are investigated. The numerical results, including displacements and temperature fields, are compared with COMSOL simulations. The comparative results indicate that the model has good accuracy in predicting the impact of structural deformations on the temperature field.</p>