ObjectiveTo reduce patients' adverse events caused by needle indwelling through quality control circle (QCC) activities, in order to ensure the effectiveness and safety of intravenous fluids. MethodsGuided by the QCC theory, we set up QCC, selected the topic related to reduction of patients' adverse events caused by needle indwelling, and worked out the plans from September 2012 to April 2013. Then, we adopted Plan-Do-Check-Act (PDCA) cycle method to set up goals, formulate measures, and inspect and improve the results. ResultsThe incidence of needle-related adverse events reduced from 44.8% to 9.8% by implementation of quality circle activities. There was a significant statistical difference between the two groups (χ2=148.16, P<0.05). ConclusionQCC activity can not only reduce the adverse events incidence of needle indwelling, but also improve the nurses' working enthusiasm and responsibility, problem-solving skills and accomplishment, and promote team cohesion.