A diecasting machine is provided with a mold and an injection plunger to inject and fill molten metal in the mold by an advancement of the injection plunger. The diecasting machine includes an electric servomotor and a hydraulic drive source. The electric servomotor is usable as a first drive source capable of driving the injection plunger at an advancing speed lower than 1 m/sec, while the hydraulic drive source is usable as a second drive source capable of driving the injection plunger at an advancing speed not lower than 1 m/sec.
