The invention discloses a 500kV intelligent substation security arrangement ticket expert system which achieves safety quarantine arrangement intelligent analysis and formulating through the IEDName naming rule by analyzing and identifying SCD files automatically. The intelligent substation security arrangement ticket expert system comprises an SCD and SSD file detecting module, a visually-display module and a security arrangement expert module. The intelligent substation security arrangement ticket expert system directly analyzes the SCD files, the relation of secondary equipment and primary equipment is automatically identified according to the SCD files, security arrangement ticket expert advices are output automatically, operation maintaining personnel complete secondary equipment maintaining security arrangement tickets according to the advices, information missing is avoided, the reliability of the security tickets is guaranteed, and working efficiency is improved. Meanwhile, logic information showing of the secondary equipment is provided, and the operation maintaining personnel are helped to support the correctness of the security tickets.