PURPOSE: To prevent deformation and erosion of a pipe for heating/cooling by forming laminar flow state through a filter arranged in a runner of molten metal supplied into a metallic mold for precision casting and inserting the pipe for heating/cooling as cast-in.

CONSTITUTION: Recessed dent 8a is arranged an a part of runner flowing passage near a casting cavity 2 in which the filter 8 for filtrating inclusion at the time of passing the molten metal 9 is fitted and engaged. Since the molten metal 9 is formed to the laminar flow state at the time of passing through the filter 8, welding between the pipe 7 for heating/cooling and the molten metal 9 is improved, and the metallic mold having cast-in pipe without deformation and erosion can be manufactured.