An analytical study for the piezothermoelastic behavior of a circular cylindrical shell laminated with a piezoelectric layer is presented. The solution is obtained through the Power Series Expansion method in conjunction with axisymmetric thermal and mechanical loadings expanded as Fourier series. Both the direct and the inverse piezoelectric effects are studied in detail. Results presented are valuable for both assessing numerical results (e.g. the finite element method) obtained fromapproximate methods and understanding the piezothermoleastic response of piezoelectric smart shells. It is develop analytical models for piezoelectric structures to pizothermoelectric shell structures must be careful.