This investigation was undertaken to evaluate the " effect of the student nurses" personal pain experience on assessment of pain intensity and selection of appropriate number of pain interventions. Participants in this research were 150 female student nurses who were studying in Razie Nursing and Midwifery college of Kerman university of medical sciences and health services. Data collection instrument was a questionnaire designed by researchers. Two- way analysis of variance results showed that variables of pain type ( p<0.05) and intensity ( p<0.01) in student nurses, personal pain experience, and hypothetical patients, pathology of pain ( p<0.01) had an influence on students, inferences of suffering. Also, type of pain in student, personal experience had influence on selection of number of pain interventions ( p<0.01), that is students who had experienced acute and intense pains, showed more empathy with hypothetical patients.