The water quality of the sewage in converter dust removal ischaracteristic of high hardness,high turbidity and high pH value,etc.The converter mud ischaracteristic of fine granularity,and thick viscidity.The requirementsof the technology and running management are high for the disposal and utilization of the sewage and mud in the converter.Through analysis,research and discussion on the sewage and mud disposal system running,some technical measures,such aspre-separation of the coarse granules,composite treatment of magnetic condensation and chemical condensation,adding sodium saltsto keep the water quality stable,compression and filtration of the mud,mud pump transportation for sintering,etc.,have been taken.The water quality control index should be determined reasonably:turbidity≤100mg/L,M alkalinity5～6mmol/L,hardness≤1mmol/L,P alkalinity4～5mmol/L.Meanwhile,through decreasing the lime consumption,disposing the mud from the settling tank in time and keeping the system close,the problemsin the disposal of sewage and mud in converter can be solved.