Objective To evaluate the influence of Peplau interpersonal theory on improvement of nurses communication skills.Methods Totally 50 nurses from a certain level-three hospital in Ningbo were selected as research object using self-control method.These nurses received 8-time Peplau interpersonal theory training.The clinical communication competence was compared before and after the training.Results The clinical communication ability of nurses after training was obviously higher than that before the training.The difference had statistical significance.Conclusions Peplau interpersonal theory training can effectively improve the clinical communication ability of nurses.