This paper describes an experimental investigation conducted on scaled-down models of Geosynthetic Reinforced Soil (GRS) abutments, with a scale ratio of 1:9. The study focuses on the effects of cyclic train loading on the cumulative deformations of the models. Specifically, it examines how the amplitude and frequency of the cyclic load, as well as the weight of the bridge superstructure influence the deformations at the particular vertical spacing of the reinforcement. The GRS abutment models were built with sand as the filling material and geogrid as the reinforcement. Initially, the performance of the abutment was recorded after the placement of the bridge superstructure. Then, the cyclic trainload of 17 T passenger train moving with speed of 400 km/h equivalent to Mumbai–Ahmedabad high speed train was converted into appropriate scaled-down loading amplitude and frequency was applied. The findings suggest that substantial cumulative settling of the foundation primarily takes place during the initial few hundred cycles of loading, and the settlement intensifies as the amplitude increases. The trainload amplitude and vertical spacing of reinforcement in cyclic trains have a substantial effect on the deformations of GRS abutments when subjected to cyclic loads. The highest displacement experienced during cyclic train loading is located around the uppermost part of the wall. Abutments experience a more significant effect on seat settlement due to cyclic loading.