Technology investigation was carried out about the white point in special steel bloom produced by BOF-CC in BX STEEL. By adopting strict management of raw materials and alloy baking system, the white point occurrence rate of special steel was greatly reduced, but not completely eliminated. At last RH vacuum treatment was used for all special steel smelted by BOF. Though hydrogen setting instrument, it can be found that the content of hydrogen of special steel produced by this process was greatly decreased, and the white point was completely eliminated. The measure proposed in this paper were help to reduced the white point. The statistical data in practice confirmed that RH vacuum treatment is the way to completely solve the white point of special steel.