Abstract： Objective To improve the level of diagnosis and treatment for Ureter behind Lower Vena Cava.Methods 11 cases of Ureter behind Lower Vena Cava patients′clinical information have been reviewed and analysed.The main symptom for these patients include waist ache,right kidney colic,hematuria and so on.Through visualizating on vein urinary passage,pelvis visualizating conversely and so on,a correct diagnosis can be gained mostly.Results As for 11 cases of patients who have been done ureteroureteral anastomsis,based on respective follow-up visit conducted during 1 to 10 years,their clinical symptom have disappeared,for example,right kidney hydrocele are mending well,ureter becomes smooth and kidney function normal.Conclusion Visualizating on vein urinary passage and pelvis visualizating conversely will bring mostly a correct diagnosis.When it is difficult to diagnose,a correct diagnosis can be obtained by combining such visualization with MRU or CT inspection.Surgical is a top choice for such patients,and can bring a satifactory effect.