Being adaptive to the higher penetration of distributed energy sources in future distribution network, active distribution network(ADN)has become a new development trend with the characteristics of flexible network topology and strict demand for control and communication. Coordinate optimization system can realize the complementary utilization of multi-type controllable resources in active distribution network. In this paper, typical control structure and control modes of active distribution network coordinate control system in recent years are summarized, and the advantages and constraints of different structures are analyzed. System architecture and functions of the ADN coordinate optimization system are discussed based on the national 863 program “Key technologies and demonstration of ADN with renewable energy source” demonstration project located in Guiyang. The multidimensional and hierarchical optimization control structure of the demonstration project are highlighted together with the characteristic of source-load interaction. It is expected to provide some help for the follow-up coordinate control system research and active distribution network management.