The paper presents an automatic IEC 61850 modeling scheme for intelligent device of PCS-9550 HVDC control and protection system. Firstly the scheme defines mapping regulations between structure of graphical program and hierarchical model of IED, and designs corresponding graphical modeling symbols, data templates and processing scripts. Then it links program variables to input notes of the graphical modeling symbols with connecting lines and sets descriptions and other properties of these symbols in graphical pages. Finally the scheme executes corresponding scripts of the symbols to create logic nodes dynamically and generates DOI contents of data instance during the code generation period. Therefore, the scheme generates IED model file automatically and improves engineering efficiency.