Vibration protection of pipes in nuclear power plants is a critical factor for the safety of the whole plant. In order to improve the anti-shock ability of pipes in nuclear power plants, the application feasibility of the fluid viscous damper in the plant piping protection is investigated. Then a damper design model intended to be used in nuclear power plants is researched by shock tests. Moreover, the parameters in the mathematical model are analyzed. From the analysis results, the conclusion can be drawn that the design method can be used to calculate the physical dimensions of dampers.