Abstract: The risk eassessment syetem of mined-out area hazards is discussed in brief, the contents of risk assessment of mined-out area is divided into risk assessment and vulnerability assessment. The risk of mined-out area is quantitative analyzed by adopting the fuzzy mathematical analysis method. According to the analysis results of damage situation that may be caused by the risk of mined-out area, the grading system of social economic vulnerability degree of mined-out area is build and the risk index of mined-out area hazards is obtained, therefore, the risk assessment framework of mined-out area hazards is established and risk grading of mined-out area hazards is realized successfully.

Key words: Mined-out area, Risk assessment, Hazard analysis, Vulnerability analysis