To provide a method for forming molten glass, capable of easily improving the forming accuracy of molten glass. One embodiment of the method for forming molten glass of the present invention comprises a supplying in which molten glass having a temperature of at least the softening point is discharged in a strip shape and supplied on the surface of molten metal, and a transporting the glass ribbon supplied on the surface of the molten metal, wherein the transporting includes a cooling the glass ribbon being transported, in a region on the upstream side in the transport direction, so that the temperature of the glass ribbon becomes lower than the softening point in the entire width direction.

To provide a method for forming molten glass, capable of easily improving the forming accuracy of molten glass. One embodiment of the method for forming molten glass of the present invention comprises a supplying in which molten glass having a temperature of at least the softening point is discharged in a strip shape and supplied on the surface of molten metal, and a transporting the glass ribbon supplied on the surface of the molten metal, wherein the transporting includes a cooling the glass ribbon being transported, in a region on the upstream side in the transport direction, so that the temperature of the glass ribbon becomes lower than the softening point in the entire width direction.