PURPOSE: To provide a multi-point gate die device which enables easy installation of a sandwich molding part and a single material molding part side by side without wasting much of a material.

CONSTITUTION: A multi-point gate die device 1 is equipped with a sandwich molding gate 11. On a third runner 12 connected directly to the sandwich molding gate 11, a first hot runner nozzle 14 which injects a skin material, a skin material reservoir 13 positioned in the downstream side of the first hot runner nozzle 14, and a second hot runner nozzle 15 for core material injection which protrudes to the skin reservoir 13 are provided. A first runner which connects the first hot runner nozzle 14 to a skin material nozzle 21 for an injection device and a second rubber which connects the second hot runner nozzle 15 to a core material nozzle 22 for the injection device are hot runners.