Accident information aggregation and management methods are disclosed. The Accident information aggregation and management method includes receiving an accident information from a first server, wherein the accident information includes a time information and a position information for an accident; searching whether any event data that is nearby the time information and the position information can be found in a database; if so, obtaining at least one witness information and evidence data source according to the found issue data; and providing the at least one witness information and evidence data source to the first server such that the first server can use the at least one witness information and evidence data source for further accident investigation.