Abstract: Based on a Yangtze River Bridge, an anti-collision device of steel pipe pile cofferdam filled with ceramide energy-dissipating materials was proposed in this paper, and scaled model test and numerical simulation were carried out. In order to verify the effectiveness of the release device, a 1∶25 scale model test was carried out. In order to verify the applicability of numerical simulation, this paper carried out numerical simulation of model test based on LS-DYNA finite element analysis software. By comparing the numerical simulation data with the model test data, the applicability of the numerical simulation method, the material model and the parameters was verified. The corresponding finite element model of the Yangtze River Bridge was established, and the numerical simulation study was carried out. The results show that compared with the model without anti-collision device, the reduction rate of peak impact force of the steel pipe pile cofferdam can reach 30.31%~34.08%. Some references are provided for the evaluation and design of bridge anti-collision capability.