Abstract: Objective: To explore the implementation and effect analysis in the continuous improvement of radiological protection management by PDCA cycle in my department.Methods: According to using the PDCA cycle, we establish the Radioactive safety management team, analyzing the workers wear personal dosimeter rate, treatment technicians equipped with the dose alarming device, the new employee with the radiation training, radiology staff training rate, the situation marked with radiological protection warning and the purchase of the protective equipment before andafter the special rectification of radiation protection of June 2016 (before rectification) and September 2017 (after rectification) was compared. Results: Afterusing the PDCA cycle, the rate which the workers wear personal dosimeter increases from 85.71% to 100% and treatment technicians equipped with the dose alarming device range from 50% to 100.0%.The new employee rate with the radiation training goes from 90% to 95.7%, and the situation marked with radiological protectionwarning increase 2.Not only the number of Training increase from 3 to 7, but also the number of protective equipment configuration increases 6. Conclusion: Theexperience from PDCA cycle mode involving in my radiological protection management system can promote my radiological staff to strengthen their own protection, improving the level of radiological protection and the quality of medical treatment.

Key words: Radiation therapy, Radiation protection, The radioactive safety management,
PDCA cycle