Background: Instrumental ethical climate can affect human resources both physically and mentally in the workplace. This trauma may affect contextual performance or behavior of personnel. The purpose of this study is to investigate the effect of instrumental ethical climate on contextual performance of human resources in banks and financial institutions. Method: Research method was mixed. In qualitative section; Theme analysis and Delphi methods have been used. Statistical population was bank’s expert. The sample size included 11 people who were chosen purposefully and then interviewed by a semi-structured questionnaire. The correlational descriptive method was used for quantitative section. The statistical population consisted of bank’s staff and the sample was 384 people based on Morgan table, who were selected randomly. A researcher-made questionnaire was used. Results: According to library studies, 4 indicators for measuring ethical climate and 18 indicators for contextual performance of human resources were identified. Two additional indicators have also been added after interviewing the experts. In the quantitative section, the instrumental climate had the greatest impact on the bankchr('39')s working environment and its effect on the staffchr('39')s behavior was negative and significantly negative? Conclusion: Instrumental ethical climate has a direct and traumatic effect on human resource performance. In order to increase the level of mental health of employees and the development of the organization, it is necessary to prevent the growth of instrumental ethical climate through educational programs.
