To provide an apparatus capable of obtaining high-quality mass-produced silica glass moldings at low cost in high yield.

The apparatus for producing the silica glass moldings comprises a silica glass-fusing furnace body for fusing and storing raw material particles of silica glass, an oxyhydrogen flame burner for fusing the raw material of silica glass with the oxyhydrogen flame having its tip part facing into the silica glass-fusing furnace body, a molding nozzle comprising a discharge opening for molding the fused silica glass into a shape of a desired cross section, a dummy member in contact with the fused silica glass at the tip of the discharge opening, and a dummy member-drive mechanism for pulling down the dummy member in the axis direction of the molding nozzle and pulling out a molded fused silica glass. The connection of the molding nozzle to the bottom of the silica glass-fusing furnace body is adapted to be tapered in diameter such that it reduces toward the discharge opening of the molding nozzle.