The present study aims to examine the effectiveness of group life skills training on the Anger control of deaf adolescents, studying in the academic year 2014-2015. This was a quasi-experimental study with pre-test, post-test and control group. The study sample included 34 deaf girls who were studying in the academic year 2014-2015 in Nezam Mafi High School, Tehran, Iran. Participants were selected using a purposive convenience sampling method, and were randomly divided into two groups (experimental and control groups). The Buss-Perry Aggression Questionnaire (AQ) was used to collect data. The life skills training program was delivered to the experimental group in 8, 60-minutes sessions. The study`s results showed that life skills training significantly decreased anger of the deaf girls (p < .001). According to the study results, it can be concluded that it is a social necessity to consider life skills training as a way of improving the mental status of deaf adolescents.