Abstract:The design delivery of substation is still based on traditional drawing, which is not conducive to the development of digital technology of power system cause requiring professional knowledge for the drawing check or maintenance?,In order to realize the intelligent verification of substation secondary circuit,this method based on digital twin is proposed that uses IEC61850 logical modeling ideas for reference, and from the perspective of design, the source of substation engineering life cycle, digital modeling is carried out from the general layout, to the cubicle layout, the group cubicle scheme and the wiring design.The rule base based on this modeling system combining engineering experience used on intelligent verification ,then draw the smart calibration conclusion by comparing the object instance data from the QR-Code which scanned cubicles or cables in the station.The simulation test of FengHuangShan main transformer expansion project proves that this method can improve the efficiency of operator and maintenance personnel.