To provide a method of supplying molten metal in which energy loss is suppressed by minimizing such situations that a vessel in which molten metal is housed is in a wait state.

This method is a method for supplying the molten metal which is molten in a second works to a holding furnace in a first works when the first works having the holding furnace for holding the molten metal and the second works having a furnace for melting metal are built in apart places across a public road. The molten metal is housed into a sealable vessel from the furnace in the second works, the vessel into which the molten metal is housed is loaded on a truck and transported to the first works through the public road, the vessel transported to the first works is loaded on a vehicle and transported to the holding furnace and the molten metal housed in the vessel is supplied to the holding furnace through piping mounted to the vessel by supplying pressurizing gas to the vessel.