Abstract: Objective To establish the norm of ICU Healthy Work Environment Assessment Tool in the tertiary general hospitals of Zhejiang Province. Methods From June to November 2022，A total of 1 734 ICU nurses from 32 tertiary general hospitals in Zhejiang Province were selected by using the equal proportion stratified sampling method，the AACN Healthy Work Environment Assessment Tool was used to investigate the work environment. The mean norm，classification norm，percentile norm and demarcation norm were established on the basis of analyzing the characteristics of ICU nursing work environment. Results The total mean norm of ICU Healthy Work Environment Assessment Tool in Zhejiang Province was （73.79±15.79），skilled communication was （75.00±16.23），true collaboration was （73.73±17.45），effective decision making was （70.05±18.47），appropriate staffing was （75.93±16.74）， meaningful recognition was （73.39±16.74），authentic leadership was （74.66±16.47）. For the different characteristics， five classification norms were established by multiple linear regression analysis，including region，position，number of night shift，health status and number of reported accidents in one year. The percentile norm was established with 5% interval，and the delimiting norm was established with 5 grades院excellent（≥87.50），good（75.00~87.49），average （65.28~74.99），relatively poor（50.00~65.27）and poor（<50.00）. Conclusion This study initially constructed the norm of ICU Healthy Work Environment Assessment Tool in tertiary general hospitals in Zhejiang Province，which can provide a reference standard for studying the level of healthy work environment perceived by ICU nurses，and also provide a theoretical basis for further exploring the influencing factors of healthy work environment in ICU.

Key words: Nurses, Healthy Work Environment, Intensive Care Units, Norms, Nursing Administration Research