A die-casting mold includes a first mold insert located on a side of a fixed die, and a second mold insert located on a side of a movable die. The first mold insert includes first through-holes filled with a melted metal material to be used to mold heat sink pins. The second mold insert includes second through-holes usable to discharge gas in a molding space. At least one of a first facing surface and a second facing surface includes recessed grooves communicated with the first and second through-holes when the first and second mold inserts are located in place, and the recessed grooves prevent the melted metal material from passing therethrough but allow the gas to pass therethrough. As seen in a die moving direction, the first through-holes do not overlap at least a portion of the second through-holes.