Abstract: The problem of slope seismic stability seriously restricts the safe and efficient mining of mineral resources. Taking the stability of hydraulic slope as the evaluation object，the membership degree of geotechnical characteristics，neotectonic movement characteristics，slope angle，slope height，average annual rainfall and site seismic intensity index is calculated by linear measurement function. Finally，com⁃ bined with index weight entropy weight method and confidence recognition criterion，the single index mea⁃ sure evaluation matrix and index weight vector of six characteristic indexes are calculated from two factors of seismic intensity and annual average rainfall. The results show that the proposed analysis model based on membership function and comprehensive measure is consistent with the actual situation on site，which can provide safety technical support for seismic stability of hydraulic slopes.

Key words: slope, seismic, membership function, index weight, stability