Theefficacyofshapecontrolisthecoreofthistechnologyandthemainbasisofautomaticshapecontrolsystemmodeldesigning.Thispassageconstructsthethree-dimensionalelasticdeformationmodelofCVCplusrollsystemin2250mmhotrollingmill.Comparingandanalyzingdifferentinfluenceofworkingfactorsoncontrolcharacteristic,theshapecontrolcharacteristicofCVCplusrollsysteminitswholeworktimeisstudied,andthecauseisanalyzedandthedifferenceoftherollgapcurveandcrownadjustableareainearlyandlatterworktimeiscompared.Theoutcomehascrucialmeaninginboththeoryandproduction.