The home safety is an imperative issue, especially for senior people; hencethe changes of the lodging environment are essential for their safety and health. Study aim: to detect the effect of environmental management guidelines on home safety level among elderly people. Design: Quasi-experimental research design (pre and posttest). Setting: Participants were selected from outpatient clinics of Assiut university hospital, Assiut governorate. Tools: three tools were utilized. Tool I: A structuredquestionnaire includes demographic characteristics. Tool II: Home Safety Self-Assessment scale. Tool III: Home safety level questionnaire. Results: It was found that elders' home safety level score increased from 36.3% in pretest to 54.4% in posttest with a high statistical significant difference P =0.000.Added to, there were statistically significant relations between age, residence, and educational level and home safety level of the studied sample. Conclusion: Numerous seniors are living in potentially unsafe environment and the application of environmental management guidelines was effective in increasing their home safety level. Recommendation: More authoritative work in this zone should be carried out.