Objective To understand the influence of workplace violence and professional identity on nurses' work engagement, so as to provide guidance for clinical nursing management. Methods From July to September in 2018, nurses from 4 ClassⅢ Grade A hospitals in Wenzhou city were selected as subjects randomly. The General Data Questionnaire, the Workplace Violence Scale, Professional Identity Scale and the Work Engagement Scale were used in the study. A total of 880 questionnaires were distributed and 862 valid ones were retrieved with the effective recovery rate of 97.95%. Results In the 862 participant nurses, 247 (28.65%) nurses suffered from zero frequency workplace violence, 354 (41.07%) nurses suffered from low frequency workplace violence, 202 (23.43%) nurses suffered from intermediate frequency workplace violence, 59 (6.84%) nurses suffered from high frequency workplace violence. The total score of professional identity was (110.89±19.26) points; the total score of work engagement was (59.72±8.95) points; workplace violence scores were negatively correlated with the nurses' work engagement (P<0.05) ; the total score of nurses' professional identity and the scores of all dimensions were positively correlated with the scores of work engagement (P<0.05) ; Multiple linear regression analysis showed, nurse professional identity, workplace violence, professional title, working duration and education are the main influencing factors of their work engagement (P<0.01) . Conclusions The nurses' work engagement needs to be improved, and professional identity, workplace violence, professional title, length of work and education are the main influencing factors. It is suggested that clinical nursing managers should take measures to reduce the frequency of workplace violence, improve the working environment for the nurses so as to improve their working engagement level and ensure the quality of clinical nursing service. Key words: Nurses; Workplace violence; Professional identity; Work engagement