Abstract: In order to realize a new iron/steel interface mode which uses the same ladle from BF to BOF, the ladle needs to possess multifunction such as hot metal container, transportation, cushion function and desulphurization, etc. Based on the analysis of each function of the ladle, the difficult of each function was pointed out, and some experiments were carried out to attain interrelated parameters. The result shows that there is little difference in hot metal temperature drop between the ladle and TPC as a hot metal container and conveyance. Multifunction of the ladle can be realizable, which makes the new mold of iron/steel interface available.