Abstract: In this paper, the research and progress on technology of assisted slag skimming from hot metal ladle were reviewed. The main conclusions of this article are as follows：how to use the blowing gas pushes the molten iron liquid level movement driving the desulfurization slag to skimming area is overall technical ideas of new processes; because it can not only ensure the ladle  independence and integrity, but also can meet the needs of performance requirements under different ladle turnaround modes with low operating cost, top blowing assisted slag skimming technology has being the slag skimming process development trend; developing structure of top blowing lance nozzle is one of the top blowing assisted slag skimming technology development direction.

Key words: hot metal ladle, assisted slag skimming, top blowing lance, nozzle structure