Introduction and Objectives: Promoting professional values is an important factor in the development of nursing careers, so that any mischief in honoring professional commitment and ethics can overcome the best nursing care. The view of most nurses is that there are barriers to the ethical functioning of their work environment, which disrupts their ability to provide proper and appropriate care. In view of the above, and considering that such a study was not carried out in Bam, this study aimed to determine barriers to observance of professional ethics standards in clinical care at Pasteur Hospital in Bam. Methods: This descriptive-analytic study was conducted with the participation of nurses of Pasteur Bam Hospital in a census sampling. A tool for collecting information is a questionnaire that examines the barriers to observing professional ethics standards in three dimensions: managerial, environmental and individual-care. Data were analyzed by SPSS software version 23 using descriptive statistics (frequency distribution, mean, standard deviation) and inferential statistics (independent t-test, ANOVA). The results show the relationship between the ethical and demographic variables there Mnadaramary. The mean barriers standards of professional ethics in clinical care from the perspective of nurses 56/0 +/- 81/3 that according to the maximum (5), barriers to standards of professional ethics in clinical care, which has average barriers in various fields as follows: environmental barriers with an average of 66/0 +/- 10/4, administrative barriers with an average of 64/0 +/- 77/3 and personal barriers with an average of 65/0 +/- 75/3, respectively. Discussion: Given that environmental factors as the main obstacle in non-compliance with standards of professional ethics is, therefore, recommended that health centers-Treatment with careful planning and an emphasis on the principles and standards of care, including environmental factors, importance of professional ethics improvement in, the disadvantages of non-compliance with professional ethics, Providing favorable conditions for nurses such as improving the sector, creating an environment of physical and psychological comfort and safety and satisfy their needs such as rest and adequate income, develop shifts appropriate equipment standard, effective steps to comply with the best standards of professional ethics Take away.