This paper firstly describes the requirement and target of transmitting information between substation automation system and SCADA dispatching system. After analyzing the target separately, a specified communication scheme is designed in three parts which are module, graphic and data complied with the IEC 61850 standard. An integrated platform supports both substation and SCADA system which is compatible with the international standard is developed based on this solution. In the end, the capability and the usability are approved by theoretical calculating and site applying. As a conclusion, a better solution that realizing the secondary integration technic compatible with the current technology condition is provided.