The soil foundation loading fatigue testing machine is used to simulate foundations, tunnels, and culverts. It simulates differential settlement of foundations and concrete components within them, as well as in-situ settlement deformation and slope sliding force deformation, according to the design requirements of municipal infrastructure projects such as highways, railways, subways, and water conservancy projects. It can control settlement and achieve uneven settlement. The testing equipment includes a fixed plate, settlement plate, reaction frame, data acquisition instrument, and pressure-displacement sensor.