Abstract: Currently,the unified integrated energy management has not been found in the active distribution network of China.Based on the technologies of integrated comprehensive energy management platform,regional energy forecasting and multilevel energy coordination control,a comprehensive distribution network for active energy management system is designed and developed.Considering the demand from "power-grid-load",the system integrates the information and automation systems existed in the distribution network.The data mining,highly integration and comprehensive application of massive distribution network information achieve the reasonable distribution,multivariate complement and comprehensive utilization of energy.The proposed system improves the penetration of renewable energy effectively and reduces the energy loss of distribution network.Finally,the system is constructed in Tianjin Eco-City demonstration area.The running results verify the feasibility and effectiveness of integrated energy management in active distribution network.