Thisstudyanalyzesthefactorsofinfluenceon0~#continuouscasterinNo.1SteelmakingPlantofXinjiangBayiIron&SteelCorporation(hereinafterreferredtoasBasteel).Diameteroftundishuppernozzleissmall,andthemoltensteelleakageaccidentshavebeengreatlymanifoldedinthehighcastingspeed.Inordertoincreaseyieldof0~#continuousecasterinNo.1SteelmakingPlantofXinjiangBayiIron&SteelCorporation,andaseriesofameliorationmeasurewasputforward.Throughenlargingdiameteroftundishuppernozzle(fromφ21mmtoφ21.5mm),afterthewaterdistributionofthesecondarycoolingwasoptimized.Basedonstabilizingthequality,improvingtheaveragecastingspeedandworkrateofthecaster,thecapacityofthebilletcontinuouscasterwasimproved.Abetterresultswasgained;theaveragecastingspeedhadbeenincreasedfrom3.04m/minto3.21m/min.Productionofthecasterhadbeenimprovedfrom1005179.926tin2008to1040853.075tin2009.Qualityoftheconcastingbilletsandproductionhadalsobeenstabilized.