The purpose of present study was to investigate and compare safety standards of spaces and sport equipments in girls and boys’ schools at different districts of Tehran and to provide strategies to eliminate probable problems. This study was a descriptive survey. The statistical population included all sport spaces of Schools in educational districts of Tehran. 289 schools were selected as the statistical sample of this study from four educational districts of Tehran (districts of 1, 4, 11, 18) using multistage systematic sampling method. The required standards were collected using researcher-made checklists. 5 components in the safety conditions including inside field and surfaces, privacy and lines, design and dimensions, facilities and coverage and equipments were studied. To determine the safety status of different factors, descriptive statistics was used. Also, U-Mann-Whitney, Kruskal Wallis and Friedman tests were used for comparison of safety conditions of girls and boys’ schools at different educational districts in Tehran and comparison of different components of safety, using statistical software SPSS 11. No significant differences were shown between girls and boys’ schools according to safety conditions (P> 0.05). However, there were significant differences among different educational districts in Tehran, according to safety conditions of schools (P< 0.05), and no significant difference was reported among the various components of safety (P> 0.05). Using findings of this research and related literature, necessary solutions were presented in order to eliminate risk cases.