Body Psychotherapy Techniques (BPT) is a program that teaches people how to deal more effectively with stressors. In the present study, we evaluate the effectiveness of body psychotherapy treatment on stress and salivary cortisol level in high school girls students. Materials and Methods: This Randomized clinical trials study with pre- post tests will be performed on 20 female students as case group and 20 participants serving as controls (15-18 years) in Gorgan, Iran . To determine stress, Cohen Stress Scale are administered at two points of measurement (before educational sessions and at the end of therapy), also their salivary samples collected directly after awakening as well as 15, 30, and 45 min later (the day before and after treatment). BPT group-education is given to the experimental group in nine sessions during two months. Data analysis is performed using SPSS software and unpaired t-test.