The present invention relates to different optical movable element (1, 20, 22) such as adjustable diffraction grating and adjustable phase shifter with simultaneous setting. The optical movable element (1, 20, 22) comprises a middle layer (4) which is made of deformable material and is mechanically connected a driving device. The driving device comprises a first driving board and a second drivingboard (2, 3) which are commonly oppositely arranged on the opposite side surfaces of the middle layer (4) and partly cover the middle layer (4) in order that the partial compression of the middle layer (4) caused by the driving board (2, 3) generates the partial reduction of thickness (B) in a first direction (x). The reduction in the first direction leads to a secondary deformation of middle layer on a second direction (y, z, dr) and further leads to the change of optical action of the optical movable element.