Abstract: Objective To improve blood donor arm disinfection adherence time,ensure the sterilization effect. Method Considering characteristics of the nature of work in center blood stations,it is a reasonable arrangement with Critical path Method that blood donors communication,the labeling process were integrated into the waiting time of blood donor arm disinfection,with layouting reasonably each part of the operations. Results Randomly selected 60 blood donors,with left/right arm was divided into experimental/control group respectively,the new and old Method were used respectively with a stopwatch to calculate two disinfection time,the difference was statistically significant （P<0.01） by t test. Conclusion New Method has an irreplaceable advantage which can improve blood donor arm disinfection time adherence,ensure the disinfection effect,and reduce blood donation reaction as well as labeling mistake.

Key words: Sterilization time, Compliance, Critical path method