Abstract: For large-scale information collection, Web sites contain considerable links.After a period of time, some web references that for a variety of reasons will not lead to a valid or correct web page, which is called dead link.The paper puts forward a dead link testing method.Achieve link messages automatically according to processes of URL dispatch.Analysis and detect dead links based on structural characteristic of web links and chain of actions needed to retrieve a web page;preprocess data collected before, due to a large number of relevant content links existed in a web page and relationship between user experience and page depth.Experiment results show that the method can improve coverage percentages and processing efficiency of dead links detection effectively.