Abstract: Objective: To investigate the status of nurse transformational leadership and team efficacy and analyze the relationship between them. Methods: It was a cross-sectional study, 345 nurses from 13 departments in a tertiary grade A hospital in Tianjin were investigated with transformational leadership scale and team efficacy scale. Results: The general scores of transformational leadership and team efficacy were 105.97±18.94 and 43.75±7.84, respectively. There was a significant correlation between them (r=0.785, P<0.001). Conclusion: The transformational leadership of nurse managers could influence the team efficacy. It is suggested that nurse managers should increase their transformational leadership to improve nurses' team efficacy.