Objective： To observe effects of intelligent dressing behavior management system under cloud computing technology on surgical staff’s behavior. Methods: Under cloud computing technology, the intelligent dressing behavior management system was connected to the hospital information system (HIS). Surgical staffs’ behavior were traced with RFID technology. Effects of intelligent dressing behavior management system under cloud computing technology were observed, which including register duration, error rate of information, rate of dressing violation, dressing reclaim rate and amount of dress lost. Moreover, satisfaction of staff to the system was investigated. Results: Intelligent dressing behavior management system under cloud computing technology not only improved working efficiency but also decreased costs. Most of surgical staff were satisfied to the system. Conclusion：Intelligent dressing behavior management system under cloud computing technology would make the managements of operating room more standardization and scientific.