The traditional strength reduction finite element method (SRFEM) is widely used in numerical analysis of slope stability. However

for the lack of considering geotechnical uncertainties

it still cannot be directly applied to the reliability analysis of slope stability

especially the dynamic stability problems. Thus

based on the SRFEM

the reliability analysis method of slope dynamic stability under seismic loading is proposed. In this method

the finite element limit analysis

dynamic analysis and reliability analysis are included to analyze the reliability problems of slope under seismic loading; and above process is realized in the numerical calculation program. For the traditional method

the acquirement of slope safety factor should be based on continuous manual pilot calculations

which makes batch processing impossible. But in the proposed method

above problem is solved through the improved slope dynamic failure criterion and the corresponding calculation program. The case study shows that the proposed method is significantly different from the general methods; it can relatively comprehensively reflect the dynamic characteristics of rock mass

the variability and correlation of material parameters. The results are closer to the reality. The proposed method not only widens the application scope of SRFEM

but also provides a new effective way for the reliability analysis of slope dynamic stability.