The invention provides a distribution device detection management method, a relative device, and a relative system, wherein one server detected by back end is used to detect a plurality of object devices divided into a plurality of groups, while each group has one object device as head, and the left object devices as members, receiving part or whole state information of the whole group from the group head or receiving the state information from one member, responding the received state information of the member, to select part of detected devices from the device groups, to form a new group, and sending the information of the new group to the head of the new head.