The invention relates to a tree structure network autonomous management and node adding method, comprising: firstly measuring routing hops between a node to be added and each node in a tree structure network, and then adding the node to be added to an appropriate position in the tree-shaped network according to a routing hop relationship, so that a physical hop relationship and a topology hop relationship between the nodes remain substantially consistent. A flexible node autonomous management method is provided for a network service with a large scale of nodes participated, and the adding process thereof reflects a physical position relationship between nodes as far as possible, and facilitates the addressing and searching of nodes.