Based on the physical model test of ice force in a project,we analyze the ice force of the high-pile pier structure. The results show that the reduction of ice force between piles,the cover of ice force between the front piles and back piles,and the non-simultaneous destruction of ice in front of each pile exist objectively.The reduction should be considered in calculating the ice force of the structure.The reduction of ice force on both sides of the edge pile is smaller,and that on the middle pile is larger;with the decrease of the pile spacing,the ice force also shows a trend of decrease;with the increase of the ice work angle,the reduction level of ice force on the first ice pile begins to decline,and the masking effect of the back row pile gradually weakens. The non-simultaneous failure coefficient of ice in this test is about 0.5.There are many factors to be considered in the reduction of ice force of the pile group,which is a complex subject. It is suggested to carry out model tests in concrete design.