Online account recognizing and matching method

The invention relates to an online account recognizing and matching method. The method includes the steps of 10, sorting online accounts according to attributes which pre-defined matching rules require; 20, if one online account has all attributes which one matching rule require, serially connecting contents of the attributes of the online account to form an attribute string, and forming a correspondence between the attribute string and a record ID (identifier) of the online account; 30, merging the record IDs corresponding to the same attribute string; 40, broadcasting a record ID which the identifier of one real person has, to the real person, forming a correspondence between the record ID and the identifier of the real person to whom the record ID belongs, merging the identifiers of the real persons corresponding to the same record ID, and subjecting the identifiers of the merged real persons to transitive closure processing to obtain new identifiers of the real persons; 50, repeating the step 40 until that the real persons have no change. The method is applicable to large-scale recognition and matching of online accounts.