ABSTRACT In typical engineering applications of loess tunnels, rainfall has a significant influence on the loess mass of tunnels. In order to explore the influence of rainfall seepage on the tunnel dynamic response, this paper takes the common curved wall section loess tunnel (CWSLT) as an example, employs the finite element method (FEM), considers the effects of earthquakes and rainfall seepage, the CWSLT models are established and the shaking table test was carried out, the variation laws of stress, displacement, and acceleration of the CWSLT under different buried depths, rainfall amounts and earthquake types (near-field with pulse, near-field without pulse) are studied. The results show that with the increase of rainfall, the lining stress increases and the tensile stress in the middle of the inverted arch of the tunnel lining structure increases; Under different earthquakes, the maximum stress of the tunnel appears at the arch foot and the midpoint of the inverted arch; With the increase of buried depth, the settlement displacement of loess tunnel increases gradually. The above research results have important guiding significance for the design and construction of loess tunnels.