In recent years, with the increasing application of vibration reduction and isolation technology in Bridges, liquid viscous dampers, as an important device of vibration reduction and isolation measures, have been applied more and more in bridge engineering, especially in special long-span Bridges. There are a large number of domestic and foreign manufacturers of dampers, and the levels are not uniform. There is no mature system to follow for the quality detection of dampers in our country. Based on the advanced American AASHTO for locking devices and the European code EN15129 for velocity dampers, this paper discusses the relevant regulations and testing methods of liquid viscous dampers used in Bridges, which can provide reference for the quality control of dampers used in bridge design.