PURPOSE: To provide the TITLED method.

CONSTITUTION: In the method for automatically pouring and stopping molten metal 6 so as to hold a molten steel level in a mold 5 to the constant by making an opening/closing device 3 the automatic opening degree through a nozzle 4 connecting with bottom part of the tundish 2 through the opening/closing device 3, the molten steel level, in the mold 5 and the opening degree corresponding to the opening/closing device 3 are continuously measured. It is assumed that time point these values change from the stationary condition to the unstationary condition, is the timing when slag flows into the mold 5, and by closing the opening/closing device 3, the pouring of molten metal into the mold is stopped. By this method, adjustment of molten metal quantity is executed with automatic pouring even under unstationary condition, and the remained molten metal (steel) in the tundish 2 is made to the min. limit and pouring of the molten metal can be stopped without influencing to the molten metal (steel) in the mold 5 and the yield is drastically improved.