Purpose: In order to manage the steep slopes effectively, this study diagnose problems in the procedure of steep slopes management and propose Improved frame work is intended to mitigate human and property damage Method: Problems in the system are drawn through review of procedures for designation of collapse risk zones and fied investigation, interviews with local governments, and expert advice. Result: The selection stage, the subject of the management, the management method, and the factors that need to be improved by the management stage before the evaluation are derived. Conclusion: This paper identified the problems raised and drew improvements and presented the research direction for the development of the new system (plan) and the steep slope site.