The invention relates to a test device for simulating water level rise and fall of a water delivery channel in a cold region in a centrifugal field, which comprises a controller, a bottom plate, a model box, a model channel, a hydraulic sensor, a water tank, a water supply and return pipe, a water valve and an electromagnetic valve; the model channel is arranged in the model box, the model box andthe water tank are respectively fixed on the bottom plate, the water tank is positioned on the outer side of the model box, and the model box is communicated with the water tank through the water supply and return pipe; the controller is respectively connected with the water valve and the electromagnetic valve; and the invention provides a water level control device which is stable, reliable andhigh in control precision, realizes a centrifugal model test for simulating water level rise and fall of a channel in a cold region, prevents negative temperature freezing process in the model box from generating adverse effect on the water level rise and fall device, and has very important significance for further exploring a mechanism of deterioration of the channel in the cold region and promoting engineering design optimization.