The present invention discloses an automatic extracting method of event evolving relationship based on news. The method comprises: preprocessing news information, extracting news leads, extracting news event time, extracting events, extracting event keywords, and analyzing event evolving relationship. The present invention further discloses an automatic extracting system of the event evolving relationship of news. The automatic extracting system comprises a news information preprocessing module, a news lead extracting module, a news event time extracting module, an event extracting module, an event keyword extracting module, and an evolution relationship analyzing module. Through the adoption of the automatic extracting method and system, disclosed by the present invention, the graph of event evolving relationship is more reasonable, and the relationship between events is more clear; the automatic extracting method and system have the advantages that partial problems in the present field of news evolution analysis are solved, so that the evolution analysis achieves better effects, and users can conveniently know the evolutionary skeleton of the whole news topic.