How to apply vibration reduction and isolation technology to the engineering design of railway continuous beam is a research topic worthy of attention. Based on the demand analysis and the characteristics of railway continuous beams, a design idea of a new type of lead core damper is put forward, and the feasibility of applying the damper to the design of railway continuous beams is analyzed by using the conceptual design method. The analysis results show that the application of lead core damper to the design of railway continuous beam can achieve good results, and the seismic horizontal force acting on the F part of continuous beam can be greatly reduced, so as to reduce the engineering quantity of pier and foundation, and obtain better technical and economic benefits.