The invention discloses a hydraulic jack capable of changing the direction. A base is included, and installing bases are fixedly installed on the outer surfaces of the two sides of the base; a press rod is arranged above the base; a converting switch is arranged on the outer surface of one side of the base; a pneumatic valve is fixedly installed on the outer surface of the rear end of the base; apressure meter is fixedly installed on the outer surface of the upper end of the pneumatic valve; a first oil pipe is fixedly installed on the outer surface of the rear end of the base; a second oil pipe is fixedly installed at the position, close to the first oil pipe, of one side of the outer surface of the rear end of the base; a body is fixedly installed on the outer surface of one end of thesecond oil pipe; and an ejecting rod is arranged in the body. The hydraulic jack capable of changing the direction is provided with a plurality of connection ports, a gasket and an adjusting rod, theusing effects of the hydraulic jack are increased, abrasion to the connection ports is avoided, angle adjusting can be performed on the body, and better using prospects are brought.