Traditional event evolution analysis method can’t find out the relationship between potential connected events in a topic. We proposed a new method based on FCA. This method uses the idea of topic three layer model to extract the properties in the event and filter the useless properties in the light of PFF(Property Frequency Factor ). It constructs the Formal Context with property relation between events and analyzes the event evolution relation with similarities algorithm based on concept lattice. Practical examples show our method is effective.