The utility model discloses two four dimensional manipulators for high g value geotechnical centrifuge tests. A hydraulic driven four dimensional manipulator for a high g value geotechnical centrifuge test comprises an X oil cylinder, a Y oil cylinder, a Z oil cylinder, an X bracket, a Y bracket, a Z bracket and a hydraulic motor, wherein both the X oil cylinder and the Y oil cylinder are double-rod hydraulic cylinders, the Z bracket is movably connected with a Y-direction guide rail of the Y bracket, the lower end of a body of the Z oil cylinder is fixedly connected with the Z bracket, and a piston rod on the lower end of the Z oil cylinder protrudes from the Z bracket and is connected with the hydraulic motor. A Z-direction adjustable four dimensional manipulator for a high g value geotechnical centrifuge test further comprises a sector division plate, wherein the Z bracket is connected with a hinge of the Y-direction guide rail of the Y bracket, and the upper end of the body of the Z oil cylinder is fixedly connected with the sector division plate. By adopting a hydraulic driven mode, the requirement of large output required by a geotechnical test is satisfied. By adopting a special dividing device mechanism, the manipulator can be inclined to a certain angle so as to satisfy different test requirements.