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.