The actual context, marked by the high cost of health care associated with technological advances, the increase in the workload of health professionals and the aging of the population with multiple chronic diseases. There are concerns raised by health organizations regarding the quality of care, with emphasis on actions aimed to the continuous quality improvement. The effects of clinical supervision on quality of care defined as a target area by the World Health Organization are a key aspect in improving quality. The literature shows that there is no model of nursing clinical supervision capable to respond to the actual context needs. The objective of this exploratory, descriptive and longitudinal study was to implement a contextualized nursing clinical supervision model, SafeCare model, in order to identify the contributions of its implementation in the indicators sensitive to nursing clinical supervision. The study was conducted in the surgery department of a health care institution and the nurses of the surgery department composed the sample. With this article we intend to disseminate the results of the implementation of the SafeCare model and to prove that the implementation of a contextualized Nursing clinical supervision model based on nurses’ needs, SafeCare Model, has contributed to obtaining higher quality and safer care for clients.