A　membrane　of　a　dielectric　elastomer　deforms　subject　to　a　voltage　through　the　thickness.　The　voltage　induced　deformation　is　highly　nonlinear　and　even　non-monotonic,　inducing　the　pull-in　instability.　A　cylindrical　elastomeric　tube　subject　to　an　internal　pressure　exhibits　quite　similar　instability　behavior.　We　study　the　deformation　behavior　a　dielectric　elastomer　tube　subject　to　electromechanical　coupling　loading.　Explicit　expressions　for　the　critical　conditions　of　electro-mechanical　bifurcationare　derived.　The　post-bifurcation　path　and　the　steady　state　propagation　is　comprehensively　investigated.　©　2017　ICF　2017　-　14th　International　Conference　on　Fracture.　All　rights　reserved.