Objective: to analyze the impact of the implementation of a model of clinical supervision over the emotional intelligence capacities of nurses. Methods: mixed methods study. Quantitative data were collected before and after the implementation of the Model, using the scale of Emotional Intelligence Capacities of Nurses; analyses were carried out using descriptive statistics and paired samples were analyzed using the t-test. 47 nurses from one hospital participated. Qualitative data were obtained from the analysis of the discourses of the nurses in a public presentation, using thematic/categorizing content analysis. The findings were integrated at the end to generate the results. Results: no statistically significant differences were found with the implementation of the Model. However, the nurses involved recognized the positive impact of the SafeCare Model in the development of emotional competences. Conclusion: the study contributed for clinical supervision and for the development of emotional competences.