;In this study, the bridge collision experiment as study target. In the failure of the bridge after the earthquake due to the collision caused many related research at present, and its results, however the previous research results are mainly horizontal bridge, no studies with collision effect slope bridge. In fact, the viaduct, viaduct across the ramp bridge, mountainous terrain change at the bridge, the bridge deck slope changes, even up to 10%. The effect of slope on the bridge collision reaction and structure of power, at present there is no literature study. Therefore this research design small with slope steel bridge model, the shaking table test, and use SAP2000 to establish the finite element numerical analysis model. Results compared with the results of numerical analysis, verify the finite element simulation analysis of the collision model accuracy, confirm the accurate finite element model, using this analysis model assumes that the impact spring stiffness. The results showed, increase the ground surface acceleration amplitude, increase, the deck displacement increase, the collision force is increased. Impact spring stiffness proportional to the collision force, collision force and with increasing trend. There are several small collision phenomenon in each round of collision, and the small collision frequency amplitude increases with the surface of the earth, but with the increase of frequency and reduce the.