On　the　basis　of　the　anisotropic　damage　theory　and　piezoelectric　theory,　the　nonlinear　governing　equations　for　piezoelectric　moderately　thick　laminated　plates　with　damage　subjected　to　a　parametric　excitation　are　derived　through　applying　the　energy　principle　and　Lagrange　equation.　Employing　the　incremental　harmonic　balance　method,　a　solution　for　the　nonlinear　dynamic　stability　of　the　piezoelectric　moderately　thick　laminated　plates　with　damage　is　obtained.　In　the　numerical　examples,　the　influences　of　damage　parameters　and　piezoelectricity　on　the　nonlinear　dynamic　stabilities　are　discussed　and　the　inherent　features　about　the　coupled　mechanics　and　electricity　are　revealed.　A　comparison　is　made　with　available　data.