Hydrogels　are　reticular　polymer　compounds　containing　a　large　number　of　hydrophilic　groups.　Under　the　stimulation　of　external　physical　and　chemical　factors,　such　as　temperature,　pH,　light,　electricity,　magnetism,　sound,　force　and　chemical　solution,　reversible　changes　in　volume　and　shape　can　occur　under　artificial　control.　Compared　with　other　types　of　hydrogels,　electrosensitive　hydrogels　are　mostly　composed　of　polyelectrolyte　polymers,　which　can　deform　under　the　action　of　DC　electric　field.　Realizing　the　conversion　of　electrical　energy　to　mechanical　energy,　it　can　be　applied　as　an　energy　conversion　device　in　fields　such　as　robots,　sensors,　controllable　drug　release,　and　artificial　muscles.　In　this　paper,　based　on　the　chemical　mechanical　electrical　continuum　model　of　electrosensitive　cantilever　hydrogel　proposed　by　Abdolhamid[1],　the　evolution　process　of　bending　behavior　of　electrosensitive　hydrogel　under　external　electric　field　stimulation　is　studied.　The　bending　deformation　of　electrosensitive　hydrogels　with　different　electric　stimulation,　concentration　of　the　mobile　ions　in　solution　and　bound　anions　concentration　of　gel　was　studied.　The　results　show　that　the　size　of　the　potential,　the　concentration　of　mobile　ions　in　the　solution　and　the　concentration　of　bound　anions　in　the　gel　will　have　a　greater　impact　on　the　bending　deformation　of　the　electrosensitive　hydrogel.　The　conclusions　obtained　have　certain　guiding　significance　for　the　design　and　manufacture　of　the　electrosensitive　hydrogel.　©　2023　SPIE.