Objective To discuss the risk factors of the chronic obstructive nephropathy progression.Methods A retrospective analysis of the patients with chronic obstroctive nephropathy was performed.Multivariate logistic regression was used to identify correlate risk factors of the chronic obstructive nephrupathy progression.All calculation were compu- ted with the aid of SPSS 10.0 software package.Results In the analysis of risk factors of the chronic obstructive ne- phropathy progression,gender(OR=1.963,P=0.018),hypertention(OR=2.228,P=0.039),hyperuricemia (OR=4.204,P=0.000),hypocalcemia(OR=2.612,P=0.031),proteinuric(OR=1.639,P=0.049),hy- poabumia(OR=5.505,P=0.000),SIRS(OR=6.113,P=0.000),anemia(OR=5.257,P=0.000),renal atophy(OR=5.964,P=0.009),contrast medium(OR=6.113,P