Educational centers are of those types of organizations to which almost everyone refer during the life to use the services. Accordingly, the suitability of safety situation in these organizations is of high importance. The present study aims at investigation of effective factors on safety management in educational-training organizations of metropolises. This study is an applied descriptive research. The educational centers of metropolises comprised the statistical population of the current study, and Tehran is the selected sample as Iran&rsquos capital and a metropolis. The collected data examined the safety discussions in terms of human factors, management error, equipment and environmental factors. The results of the study indicated that the identified factors (human, management error, equipment, and environmental factors) affect the safety management, and the factors of management errors, human factors, environmental ellements, and equipment were of highest to least importance, respectively.