"Hotspot" problem is an important factor of causing the load imbalance and then affecting the retrieval efficiency in structured P2P networks.In this paper

the mechanisms for managing the amount of node's download and upload as well as the information of the "hotspot" nodes and the "cold spot" nodes are described and then the push and pull combined "hotspot" load migration strategy in structured P2P network is proposed by utilizing the complementary nature of "hotspot" nodes and "cold spot" nodes.Since the load migration processes are triggered by their neighbor nodes of "hotspot" or "cold spot"

the non-cooperative problem brought by the nodes due to their selfishness for the load migration can be eliminated.The experimental results show that the proposed strategy is effective in handling "hotspot" problem in structured P2P networks and easy to put into practice.