PROBLEM TO BE SOLVED: To provide a dielectric elastomer operation device capable of avoiding complication of a structure, reducing size and weight, and improving operation smoothness and efficiency.SOLUTION: A dielectric elastomer operation device comprises: driving means 1 including a dielectric elastomer driving element 11 having a dielectric elastomer layer 111 and a pair of electrode layers 112 sandwiching the dielectric elastomer layer 111, a tension maintenance element 6 for keeping the dielectric elastomer driving element 11 in a tension generated state in a non-potential state where no voltage is applied to the pair of electrode layers 112, and an output part 15 moving according to extension and contraction of the dielectric elastomer driving element 11; driven means 2 including a driven element 21 operated according to an input driving force; and transmission means 3 connected to the output part 15 of the driving means 1 for transmitting the driving force of the driving means 1 to the driven means 2.SELECTED DRAWING: Figure 5【課題】 構造の複雑化を回避し小型化および軽量化を図るとともに動作のスムーズさおよび効率を向上させることが可能な誘電エラストマー動作装置を提供すること。【解決手段】 誘電エラストマー層111および当該誘電エラストマー層111を挟む一対の電極層112を有する誘電エラストマー駆動要素11と一対の電極層112に電圧が印加されていない無電位状態において誘電エラストマー駆動要素11を張力が生じた状態に保つ張力維持要素6と誘電エラストマー駆動要素11の伸縮に伴って移動する出力部15とを含む駆動手段1と、入力された駆動力にしたがって動作する従動要素21を含む従動手段2と、駆動手段1の出力部15に接続され且つ駆動手段1の駆動力を従動手段2に伝達する伝達手段3と、を備える【選択図】 図5