As one kind of primary passive vibration control technology, the seismic isolation technology provides a new way for anti-seismic of bridge and has got initial application in practical bridge engineering. Some standard clauses have been added into the international codes including Eurocode 8, codes of AASHTO and Japan Highway as well as China Highway. In this paper, using the finite element program Sap2000, a three spans continuous beam bridge is taken as practical calculation example for analysis and comparison based on four codes above. The research results provide important reference for further research and practical application of bridge vibration reduction and isolation.