The invention relates to a management unit for intelligent substation localization protection and a forwarding method thereof. Firstly, according to the SCD file of a substation, information of all component protection subunits of the whole station is obtained, a management unit model is generated, one of the subunits is selected, and a CID model file thereof is derived as a virtual device model.Then, according to the management unit model and the virtual device model, the SCD file of the substation is configured, and the station control layer device communication SCD files are formed. Finally, the corresponding information is uploaded based on the obtained station control layer device communication SCD files. The invention improves the reliability of forwarding the uploaded integrated information multiple component protection sub-units by means of the uploading mode of the virtual device and single device information. Transmission is performed based on the configuration method of three station control layer device communication SCD files so that the requirement of sending information accord to the customized information of different station control layer devices is satisfied. Themanagement unit and the method are favorable for improving the efficiency of intelligent substation maintenance and overhaul.