Calling data analysis method and system

The invention discloses a call data analysis method and system, and the method comprises the steps: screening obtained link data at a current moment to obtain four types of Spans of a client Span, a server Span, an entrance Span and an exit Span, then carrying out the pairing of the client Span and the server Span which belong to the same call in the client Span and the server Span which are obtained through the screening at the current moment, and carrying out the pairing of the client Span and the server Span which belong to the same call. And finally, aggregating the request information of the entrance Span, the exit Span and the successfully paired Span obtained by screening at the current moment to obtain aggregated data. Wherein the successfully paired Span can represent the calling relation between the internal service applications of the system, the exit Span and the entry Span can represent the calling relation between the internal service applications of the system and the external system, all data