
Background: the on job training protocol on new nurses is a guide develop as a guide for running a trial period on new nurses accompanied by grooves and modules. Aims: to develop the on job training protocol on new nurses at MitraMedika Medan hospital. Methods: the study design used action research conducted in one cycle from July 2017 to January 2018. There were 13 participants who qualified using purposive sampling based on the inclusion criteria. The data were gathered focus group discussion and questionnaire. The data were analyzed qualitatively using content analysis and quantitatively using descriptive statistic. Results: the research emerged six themes: establishment of protocol on job training of new nurses, improvement in the process of forming the protocol on job training, barriers to the process of forming the protocol on job training, benefits of the process of forming on job training for participants, hope the process of forming on job training and, and supporting factors of formulation on job training. Result of quantitative analyze showed that managerial knowledge of hospital manager onjob training in new nurses before research activity was 84.6%, and after it increased to 96.7% with an average value increase from 10.7% to 13.0%. Conclusion: the results show a on job training that has become the new policy of the standard operating procedures, grooves, and on job training modules.