The utility model discloses a tilt cylinder formula hydraulic actuator has solved loading piston cylinder and the slow problem of pedestal mounting, its technical scheme main points be including oil tank, piston cylinder with push away the steering wheel structure, the piston of piston cylinder end with it constructs articulatedly to push away the steering wheel, a serial communication port, the oil tank is fixed with the base, the base includes by lower supreme bottom plate, intermediate lamella and upper plate, bottom plate, intermediate lamella and upper plate pass through riser welded fastening, the welding has deep floor between riser and the bottom plate, the both sides of riser be equipped with respectively with bottom plate, intermediate lamella and upper plate welded fastening's left board and right board, the cylinder body of piston cylinder as for between upper plate and the intermediate lamella and through the bolt articulated with the base, the piston cylinder with the bottom plate remains the clearance, reaches piston cylinder and the swift effect of pedestal mounting.