Abstract: Objective: To investigate the beliefs and attitudes toward unrestricted visiting policy among ICU nurses,and to explore its influencing factors. Methods: Totally 245 ICU nurses from three Tertiary Grade A general hospitals in Hangzhou were recruited by convinience sampling method and investigated using the Beliefs and Attitudes toward Unrestricted Visiting Policy Questionnaire. Results: The average score of beliefs and attitudes toward unrestricted visiting policy among ICU nurses was (2.57±0.61), and (1.95±0.39), respectively. There wasn't correlation between beliefs and attitudes (r=0.135, P=0.064). The education background, working years and visiting experience were the influencing factors of the beliefs and attitudes toward unrestricted visiting policy among ICU nurses (R2=0.316, F=13.007, P<0.001).Conclusion: The beliefs and attitudes toward unrestricted visiting policy among ICU nurses needs to be improved.The education background, working years and visiting experience are the influencing factors of the beliefs and attitudes toward unrestricted visiting policy among ICU nurses.