Short taphole length is one of the most troublesome problems of Baosteel’s Corex - 3000 after its startup.Owing to the melter gasifier process,the char bed floated up and down as the level of hot metal and slag in hearth changing.These cause a lot of problems such as the heavy erosion of taphole areas and hard cast house work.The high second tapping flow is a noticeable characteristic of Corex process.The reasons of short taphole is analysed,and countermeasures are put into practice,some improvements are carried out in module 2 Corex -3000. Short taphole length is one of the most troublesome problems of Baosteel’s Corex - 3000 after its startup. Owing to the melter gasifier process, the char bed floated up and down as the level of hot metal and slag in hearth changing. The cause cause a lot of problems such as the heavy erosion of taphole areas and hard cast house work. high second tapping flow is a noticeable characteristic of Corex process. reasons of short taphole is analyzed, and countermeasures are put into practice, some improvements are carried out in module 2 Corex -3000.