Background: Violence has increased in the workplace, and in health institutions, as it is an important occupational risk for nurses, as violence against nurses from relatives and patients is a danger, as this is due to the level of frequent contact with patients. Aim (s): To assess the workplace violence among psychiatric nurses at Eradahh Complex and Mental Health, in Taif, Saudi. Methods: A Cross-sectional study design was used. We recruited the psychiatric nurses by random probability technique. The study sample consists of psychiatric nurses who are presently working in the Eradahh Complex and Mental Health, Taif, Saudi Arabia, nurses who are in direct contact with psychiatric patients, and nurses who have the desire and voluntary consent to participate in the study selected. The sample size was 141 nurses, and 10 % were added in case of non-response, so the sample size was 141+10=151 psychiatric nurses. Results: The researcher found that there is a high prevalence of violence in the workplace (90.1%) in the Eradahh Complex and Mental Health in Taif, where the researcher found that the source of Violence in the workplace was patients themselves (90.8%), relatives (42.6%) and visitors (32.6%), in addition to co-workers (25.5%), where the organization must be taken into account to avoid victims of violence in the workplace and create a safe and orderly environment, in addition to a high percentage of nurses who are considering leaving their jobs because of violence in the workplace. Conclusions: There was an effect of violence in the workplace on the nurses in the Eradahh Mental Health Complex, and there are different types of violence to which they are exposed, as the above led to unsatisfactory results regarding the nurses’ thinking in terms of thinking about leaving work.