The invention discloses a hydraulic drive double-acting slurry pump comprising a power motor, a pressure oil pump, a three-position four-way hydraulically operated reversing valve, a hydraulic power end and a slurry pump head. The power motor is in transmission connection with the pressure oil pump. The pressure oil pump communicates with a port P of the three-position four-way hydraulically operated reversing valve through a pipeline. A port T of the three-position four-way hydraulically operated reversing valve communicates with the oil tank through a pipeline. A port A and a port B of the three-position four-way hydraulically operated reversing valve are both connected with the hydraulic power end. The hydraulic power end is in transmission connection with the slurry pump head. The lower end of the slurry pump head communicates with a lower-pressure manifold. The two sides of the slurry pump head communicate with a high-pressure manifold. The hydraulic drive double-acting slurry pump enables the instantaneous flow rate and pressure of discharged liquid of the slurry pump to be more stable and reduces fluctuation.