In order to study the response of U-shaped channel of different materials to frost heave, the paper carried out numerical simulation by using ADINA software with channel lining board as research object. The results indicated that the displacements of GFRP are more 27.44%、27.34% than that of concrete in both sides of channel respectively,but the change rates of displacement decrease by 4.49% to 16.19%, the variation of frost heave is uniform; GFRP has more strong ability to adapt to deformation.The equivalent stress and frost heave force of channel lining are decreased by 43.86% and 9.96%.The U-shaped channel of GFRP can reduce the frost heaving break of channel to a large extent and is worth being widely practiced and popularized.