The invention discloses an automatic 
slag splashing control method and 
system for a converter, and belongs to the technical field of converter 
slag splashing furnace protection. The control method comprises the steps that firstly, final 
slag conditions are classified according to the end point 
oxygen content, the end point carbon content and the residual 
manganese yield range in 
molten steel; secondly, according to different final slag conditions, slag adjusting materials with the corresponding weights are selectively added into the converter to adjust the 
viscosity of the slag, and the content of 
magnesium oxide in the final slag is made to be 10%-15%; and thirdly, corresponding slag splashing gun position curves are selected according to different final slag conditions, and the 
control system is used for carrying out automatic slag splashing operation. The automatic slag splashing control method and 
system have the beneficial effects that the slag adjusting materials with corresponding weights are added according to the different final slag conditions for slag adjusting, the corresponding slag splashing gun positions are automatically selected, the automatic slag splashing operation is completed, and the slag splashing operation is standardized. The labor intensity of workers is lowered, the slag splashing time is shortened, the 
nitrogen consumption is reduced, and the furnace profile can be more stable to maintain.