Hydraulic jack

The utility model belongs to the technical field of hydraulic jacks, and particularly relates to a hydraulic jack which comprises a jack body, a bottom plate is installed at the bottom end of the jack body, three moving assemblies are arranged on the bottom plate, a limiting assembly is arranged on the jack body, and each moving assembly comprises a support installed on the bottom plate. A threaded rod is rotationally connected to the bottom plate, a micro motor is installed in the bottom plate, the output end of the micro motor is connected with the threaded rod, a connecting base is connected to the threaded rod in a threaded mode, a supporting rod is installed on one side of the bottom end of the connecting base, and moving wheels are installed at the bottom end of the supporting rod. Through the arrangement of the moving assembly, the jack body can be conveniently moved and used, manual carrying is not needed, and the transportation labor amount is reduced; and through the arrangement of the limiting asse