Objective To understand nurses′ shared decision-making ability, the implementation atmosphere of evidence-based practice and their relationship, so as to provide a reference for developing management strategies to enhance nurses′ shared decision-making ability. Methods A total of 1,251 clinical nurses from 8 grade A tertiary general hospitals in Xi′an were selected, then they were investigated by using a general information questionnaire, the self-assessment scale of shared decision-making ability of nur-sing staff, and the implementation atmosphere scale of evidence-based practice. Results The score of nurses′ shared decision-making ability was (185.30±22.81) points, and their score of the implementation atmosphere of evidence-based practice was (42.54±6.31) points.The implementation atmosphere of evidence-based practice, age, professional title, working years, and whether ha-ving participated in relevant training were the influencing factors of nurses′ shared decision-making ability (all P＜0.05), which explained 45.1% of the total variation in nurses′ shared decision-making ability, among which the implementation atmosphere of evidence-based practice accounted for 23.4%. Conclusion The nurses′ shared decision-making ability is at a medium level, which is influenced by the implementation atmosphere of evidence-based practice effectively.Managers should create and enhance a favorable implementation atmosphere of evidence-based practice, encourage new nurses to actively participate, support senior nurses in ma-king continuous contributions, and comprehensively enhance the shared decision-making ability of nurses.