Abstract: The theory of metallurgical process engineering was applied to further analysis of steel ladle cycling, and general research was done to extensively optimize the temperature of liquid steel in steelmaking production. A ladle running control technology was summarized, which included six contents:process analysis of ladle cycle, mathematical description of ladle running time, three calculating methods of employed ladle, temperature drop of ladle cycling, frequency of ladle operating, and optimization of ladle turnaround. This technology has been put into five converter plants, and good effects were acquired.