Objective To investigate the current situation of centralized treatment of simple breathing apparatus （SBAs） in medical institutions, and analyze the main problems, so as to better guide the practice of centralized treatment of SBAs.Methods Using convenient sampling method, a self-designed SBAs centralized treatment questionnaire was used to investigate the staff of the central sterile supply department （CSSD） of 698 medical institutions in 25 provinces in April of 2024.Results Among the 698 hospitals, 155(22.21%) hospitals had the clinical departments handle SBAs, while 517 hospitals (74.07%) had CSSD handle SBAs.Among the latter hospitals, 113 hospitals （21.86%） partially disassembled SBAs during cleaning, 18 hospitals （3.48%） did not disassemble but cleaned them as a whole, and 93 hospitals （17.99%） did not clean the inner cavity of the breathing bag.Only 112 hospitals （21.66%） selected automatic spray cleaning sterilizer + special cleaning rack for cleaning; 22 hospitals （4.26%） used natural drying after cleaning and disinfection.The staff of CSSD in 252 hospitals （48.74%） only partially knew or did not know the functional testing method of each component of the SBAs; staff in CSSD of 151 hospitals (29.21%) did not test the functions of SBAs; only 294 hospitals （56.87%） would regularly check the disinfection effect of SBAs; 181 hospitals （35.01%） chose 7 days of storage, and 135 hospitals （26.11%） chose 1 month of storage.Conclusion The centralized treatment of SBAs needs to be further implemented, the standardized management of SBAs needs to be further improved, the training of cleaning and disinfection procedures and functional testing methods for SBAs needs to be strengthened, and the supervision of relevant departments needs to be enhanced.It is recommended that the relevant national departments issue standards or guidelines for cleaning, disinfection and functional testing of SBAs in the future, so as to provide reference for stan-dardized management of SBAs.