The invention discloses a substation secondary-overhaul security measure generation method based on an SCD-file object model. The method includes: establishing a secondary-overhaul security measure adaption database; carrying out modelling of implementation objects and operation objects on a to-be-processed substation on the basis of an SCD file; embodying the implementation objects and the operation objects as implementation object instances and operation object instances, which are defined in the SCD file, according to the secondary-overhaul security measure adaption database; and adding/deleting secondary-overhaul security measures and adjusting an execution order of secondary-overhaul security measures in a manner of graphical assistance according to actual conditions in the station togenerate the secondary-overhaul security measures which can finally be actually applied. The method ensures compilation efficiency and completeness of the secondary-overhaul security measures, reserves, in a substation data object modelling module, ability of improving efficiency with standardization and integrity improvement of the SCD file, and has implementability and a promotion value.