A new concept of a piezoelectric ceramic/shape memory alloy(SMA) composite is proposed with aim of using this as a new actuator material with fast actuation speed and large strain.To prove the new concept,a new model is constructed based on Eshelby formulation where linear piezoelectric constitutive equations and bi linear superelastic equations of SMA are used.The strain induced by applied stress and electric field are made for design of two simple piezo SMA composites, that is 1 D series and 1 D parallel laminated composites.The proposed model indicated that the 1 D parallel reinforced structure can provide the highest strain induced under bias stress and applied electric field among other composite geometries.