The　snap-through　is　a　typical　geometric　nonlinear　problem　for　the　bi-stable　laminate　structures.　Using　the　Macro　Fiber　Composite　(MFC)　actuators　to　actuate　the　snap-through　behavior　of　the　morphing　structures　has　attracted　considerable　attention.　In　this　paper,　the　intrawell　oscillations　and　interwell　oscillations　are　studied　for　the　asymmetric　four　layers　cross-ply　bi-stable　rectangular　laminate　actuated　by　the　d33　type　MFC　actuator.　It　is　assumed　that　the　four　edges　of　the　bi-stable　laminate　are　free　while　the　geometry　center　of　it　is　fixed.　On　the　basis　of　the　classical　laminated　plate　theory　and　the　Hamilton＇s　principle,　the　equations　of　motion　of　the　bi-stable　laminate　which　are　expressed　by　curvatures　are　presented.　The　stable　equilibrium　configurations　of　the　bi-stable　laminate　considering　the　effects　of　MFC　are　given.　Under　the　action　of　oscillating　impulse　voltages,　the　intrawell　oscillations　and　interwell　oscillations　of　the　system　are　analyzed　in　detail　through　the　frequency-response　curves,　time　response　and　the　phase　portraits.　The　numerical　results　show　that　the　snap-through　behavior　is　easier　to　realize　for　the　bi-stable　laminate　actuated　by　the　oscillating　impulse　voltages　than　that　actuated　by　the　static　voltages.　Furthermore,　snap-through　behavior　can　be　better　controlled　by　changing　the　amplitude　and　frequency　of　the　applied　voltages　in　a　certain　range.　©　2022　Elsevier　Ltd