In　this　study,　the　dielectric　constants　of　VHB4905　and　VHB4910　are　measured　systematically,　and　the　capacitance,　edge　capacitance,　dielectric　loss　and　dielectric　loss　factor　are　analyzed.　The　dielectric　properties　are　revealed　from　the　microstructure,　and　the　Cole-Cole　model　is　used　to　characterize　the　dielectric　properties.　The　results　show　that　the　dielectric　constant　is　very　sensitive　to　the　frequency　dependence,　but　it　is　sensitive　to　the　real　and　imaginary　parts　from　10(2)　Hz　to　10(6)　Hz.　The　relative　errors　of　their　permittivity　are　small,　when　the　edge　effect　is　not　taken　into　account.　At　high　frequency,　the　orientation　movement　of　the　polar　group　on　the　side　chain　of　VHB　acrylic　leads　to　the　decrease　of　the　molecular　polarizability,　and　the　energy　consumption　of　electric　dipole,　shift　polarization　and　turn　polarization　leads　to　the　decrease　of　the　dielectric　constant　and　the　increase　of　the　dielectric　loss.　The　fitting　correlation　coefficients　of　dielectric　constant　for　VHB4905　and　VHB4910　are　high,　which　describe　the　polarization　relaxation　behavior　of　VHB　acrylic　acid.　The　research　in　this　paper　is　helpful　to　understand　the　electrical　characteristics　of　acrylic　acid,　and　provides　a　basis　for　the　design　and　control　of　dielectric　elastomer　actuator.