The paper deals with the investigation of linear buckling and free vibration behavior of layered and multiphase magneto-electro-elastic (MEE) beam under thermal environment. The constitutive equations of magneto-electro-elastic materials are used to derive finite element equations involving the coupling between mechanical, electrical and magnetic fields. The finite element model has been verified with the commercial finite element package ANSYS. The influence of magneto electric coupling on critical buckling temperature is investigated between layered and multiphase magneto-electro-elastic beam. Furthermore, the influence of temperature rise on natural frequencies of magneto-electro-elastic beam with layered and different volume fraction is presented. © 2007 VSP.