RESUMEN
Red Crescent society as the most important relief organ has a major role to give relief and casualties' reduction by evaluating and improvement of rescue and relief bases. The aim of this study was to study the effect of relief workers training through new technologies in order to reduce casualties in Tehran in mangers' viewpoint of Rescue and Relief Organization. All managers of Rescue and Relief Organization [110 ones] were selected and studied in 2011. Data was gathered based on Likert scale by using self-administrated questionnaire and Cronbach's alpha was about 0/8. The findings were as follows: there was a relationship between relief workers mobilization with new technologies and relief time reduction [Sig=0.001]; a significant relation was observed between relief workers training in the use of modern equipment and casualties reduction [Sig=0.001]; also there was a relationship between using new technologies in natural disasters and casualties reduction [Sig=0.001]. From the managers' viewpoint, the use of modern technology will reduce casualties and relief time in natural disasters. Thus, Iranian Red Crescent society should design some effective practical courses for relief workers in order to introduce them the new rescue and relief technologies and to increase their skills during disasters.