Introduction：Establishing and maintaining a sterile field requires specific knowledge and skills that an indispensable role in preventing SSI. However, every member of the surgical team has responsibilities and obligations. If the sterile field is found to be damaged during the operation, they should immediately report it. Response and processing can provide a safe environment for patient surgery (AORN, 2019). Therefore, if problems such as aseptic technique or violation of the principle of maintaining a sterile area are observed during the preparation or execution of surgery, they should be raised and improved to maintain perioperative care of surgical patients and maximize the possibility of protecting patients from possible complications. The main goal is to influence the controllable factors that lead to surgical site infection.

Methods：A checklist of 9 items was made based on AORN's recommended practices for maintaining a sterile area, including(1) hand scrubbers should stay close to the sterile area.(2) if they need to change positions, they should be back-to-back or face-to-face, while keeping distance between each other. Safe distance from the sterile area.(3) Personnel who have not brushed their hands should face the sterile area when approaching, and cannot move between the sterile and non-sterile areas .(4) Personnel who brush their hands should keep their arms and hands above the waist, Keep your hands in front of your body and above your waist.(5) Arms should not be crossed and place your hands under your armpits.(6) Personnel who have finished brushing their hands should avoid changing heights and can only take their seats when the entiresurgical team is operating at the same height.(7) The number and activities of personnel involved in surgical procedures should be kept to a minimum. (8) Talking and sneezing in front of the sterile area should not be allowed.(9) When contamination occurs with sterile techniques, corrective measures should be taken immediately.The operating procedures of a total of 38 operations in the operating room were checked to see if they complied with the practice of maintaining a sterile area. The result was that the compliance rate was only 73.7%. Improvements include production of learning videos on aseptic operations and routine surgical preparation, objective structured clinical skill tests combined with flipped teaching, situational simulation teaching, board game, and regular operation audit systems.