To provide a metallic material supplying device into a casting machine with which subjects generated in the conventional metallic material supplying device, can be solved so that the accuracy of weighing is improved and the set-up change is facilitated in the case of changing the molten metal supplying quantity into an injection sleeve, etc.

In the metallic material supplying device 10 into the casting machine for supplying molten metal into a molten metal supplying hole 2 after weighing the fixed quantity, a metallic material transporting means 20, a pot 40 for holding the molten metal, a fixed quantity weighing means 50 for stopping the material supplied with the metallic material transporting means 20 by measuring a reference level L1 in the pot 40 and a level L2 after supplying and a molten metal supplying means 60 for supplying the weighed molten metal into the molten metal supplying hole 2, are provided. Since the molten metal in the pot is weighed, the accuracy of the weighing is better than the case of weighing in the granular state and a specified quantity of the molten metal corresponding to a cavity in a metallic mold can accurately be supplied.