ObjectiveTo explore the risk factors for central venous catheter (CVC)-related infections and its Countermeasures, as CVC is an important vascular access for blood purification and is widely used in clinical applications, but catheter-related infection is one of the common severe complications. MethodsWe retrospectively analyzed the clinical data of 725 patients with complicated infections of indwelling center venous double lumen catheter treated between January 2009 and December 2012. ResultsAmong all 725 cases, 15 had catheter-related infection. There were one case of subcutaneous tunnel infection (staphylococcus aureus by the secretion culture, negative for blood culture), and 14 cases of positive blood culture including 9 staphylococcus aureus cases, 3 escherichia coli cases, 1 colorless bacillus case and 1 stenotrophomonas maltophilia case. Eight cases were cured by antibiotic therapy while antibiotics were invalid in the other 7 cases resulting in tube withdrawing. ConclusionThe central venous catheter-related infections are related to medical service ability, catheter indwelling position, indwelling time, hemodialysis adequacy, patients' general condition and personal hygiene. Taking relative measures in view of each factor is the key to prevent infections.