Objective To explore the status quo of nurse-nurse collaboration and perceived professional benefits in emergency service nurses and to analyze effects of nurse-nurse collaboration on perceived professional benefits.Methods Totally 200 emergency service nurses from 6 ClassⅢ Grade A hospitals in Zhejiang Province were selected by convenient sampling and investigated with the nurse-nurse collaboration scale and the nurses' perceived professional benefits scale between February and December 2017.A total of 200 questionnaires were distributed and 193 valid questionnaires were collected.Results The nurse-nurse collaboration score of the 193 nurses was (67.16±10.13),standing at a high level;their score of perceived professional benefits was (134.76±16.51),standing at an above-average level;and there was statistical difference in the score of perceived professional benefits between nurses with different type of employment (P＜0.05).According to the hierarchical regression analysis,communication and nurse-nurse collaboration were the influencing factors to the perceived professional benefits in emergency service nurses (P＜0.01).Conclusions The perceived professional benefits stand at an above-average level,and there is still headroom for improvement.Nursing managers may enhance the nurses' perceived professional benefits by improving nurse-nurse collaboration.