Abstract: To address issues such as high alloy costs, imprecise post-alloying component control, and excessive alloy additions in refining furnace during the alloying process of ladle metallurgy, the converter alloying process at the third steelmaking plant of Zenith iron and steel Group Co., Ltd. was taken as the subject of study. Based on historical converter smelting data from the converter, material balance and thermal balance calculations were conducted to establish a theoretical steel tapping volume calculation model. Historical alloy feeding data and batching structures were analyzed to integrate into an alloying database. Combined with planning algorithms, a steel tapping alloying model was established. Based on actual production data, the alloying hit rate and comprehensive economic benefits under different modes were compared and analyzad, and the alloying model was revised to optimize the alloy batching structure. Finally, industrial trials were conducted using 20CrMnTiCQ steel to verify the beneficial effects of the model proposed in this paper. The results show that compared to with manual feeding, the amount of alloy added using the model presented in this paper is less, the alloying composition hit rate is 100%, andthe accuracy and stability of composition control are higher. The pressure to add supplementary alloys in the refining furnace is reduced, with the average supplementary alloy addition decreased by 9.3%, resulting in an average cost reduction of 20.1 yuan per ton of steel.