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To study and determine the educational needs of nurses after graduation in order to make them further capable, aims at promotion of their occupational standards and betterment of this profession. By means of this study we can identify their needs and make necessary planning to reduce the resultant shortcommings and problems. The present research is a descriptive and analytical study conducted to survey the educational needs of nurses regarding non-pharmacological methods of controlling chronic pans in patients at medical surgical wards of the hospitals of Tehran University Medical of Sciences. A total of 119 nurses working at one of these wards participated in this research. The tool for gathering the information was a three-part questionnaire. The first part deal with individual particulars, the second part was about questions regarding the feeling needs of nurses an the third part was about questions regarding the educational needs of nurses. The findings showed: As for the feeling needs, nurses needed training , as for the level of educational needs regarding the concept of pain (69.7%), characteristics of chronic pains (52.9%), guided imagery method (50.4%) of nurses were in need of a high level of training and regarding the progressive muscle relaxation (68.9%) of nurses were in need of a medium level of training. The results revealed the connection between some individual particulars with the level of educational need, to the extent the age, clinical work experience, work experience in medical and surgical ward and the type of ward affected the level of educational need, and by using the Pearson Coefficient a meaningful statistical difference appeared, in other words, as the years of service increases , the level of knowledge decrease and the educational needs rise up.