Based on Lagrangian and Eulerian description, the finite deformation is analyzed for piezoelectric laminated curved beams under mechanical and electrical static loading. Choosing the deformed radius of curvature and tangent slope angle as fundamental parameters, the governing equations of laminated curved smart beam under mechanical and electrical static loading are derived. Firstly the equilibrium equations are deduced by using the deformed angle of tangent slope as the only variant. Then the analytical solutions of laminated curved smart beams are presented using harmonic functions. Finally the static deformations of the laminated curved smart beams are calculated by this method and the finite element method. The results show the validation of the presented method.