The utility model discloses a AMT selects hydraulic actuator that shifts with voltage limiting locate function, include the valve body, the integration has selection fender mechanism and gearshift on the valve body, and selection fender mechanism includes the selection fender piston hole that sets up on the valve body, installs to select in the selection fender piston hole and keeps off the piston rod, selects the positioning end that keeps off the piston rod to connect gradually and selects fender positioner to keep off centering device with selecting, gear shifting pull rod is installed including setting up the piston hole of shifting on the valve body to the gearshift in the piston hole of shifting, gear shifting pull rod's positioning end is connected with the positioner that shifts, the selection work of shifting of adopting selection fender that two mutually orthogonals arranged and gearshift to accomplish a plurality of gears keeps off positioner through the selection and keeps off the piston rod to the selection and carry out the position location, adopts the two couples of gear shifting pull rod of positioner and position sensor that shift to advance line location and detects with the meso position, makes that to shift the action more level and smooth, reduces the action of shifting and strikes, has simple structure simultaneously, easily controls, the characteristics of gear -change control precision height, reliable operation.