CQi Smart Micro Grid Management System is designed to replace traditional indoor PDB （Power Distribution Box） using the IoT and cloud computing technologies coupled with several years domain knowledge which integrated the indoor electric power distribution, data acquisition and computation, power usage supervisory control and protection, moreover the inter-networking communication capabilities into one box. Except to save the space, the user also can have real time supervisory control and management to building environment and equipment which lets us can have a safety, healthy, saving energy, environment protection, saving money and convenient livings.