This　paper　investigates　the　multipulse　global　bifurcations　and　chaotic　dynamics　for　the　nonlinear　oscillations　of　the　laminated　composite　piezoelectric　rectangular　plate　by　using　an　energy　phase　method　in　the　resonant　case.　Using　the　von　Karman　type　equations,　Reddy＇s　third-order　shear　deformation　plate　theory,　and　Hamilton＇s　principle,　the　equations　of　motion　are　derived　for　the　laminated　composite　piezoelectric　rectangular　plate　with　combined　parametric　excitations　and　transverse　excitation.　Applying　the　method　of　multiple　scales　and　Galerkin＇s　approach　to　the　partial　differential　governing　equation,　the　four-dimensional　averaged　equation　is　obtained　for　the　case　of　1:2　internal　resonance　and　primary　parametric　resonance.　The　energy　phase　method　is　used　for　the　first　time　to　investigate　the　Shilnikov　type　multipulse　heteroclinic　bifurcations　and　chaotic　dynamics　of　the　laminated　composite　piezoelectric　rectangular　plate.　The　paper　demonstrates　how　to　employ　the　energy　phase　method　to　analyze　the　Shilnikov　type　multipulse　heteroclinic　bifurcations　and　chaotic　dynamics　of　high-dimensional　nonlinear　systems　in　engineering　applications.　Numerical　simulations　show　that　for　the　nonlinear　oscillations　of　the　laminated　composite　piezoelectric　rectangular　plate,　the　Shilnikov　type　multipulse　chaotic　motions　can　occur.　Overall,　both　theoretical　and　numerical　studies　suggest　that　chaos　for　the　Smale　horseshoe　sense　in　motion　exists.