The invention discloses a load balancing realization method and device for a DHT (distributed Hash table) network. The method comprises the following steps: equalizing load space corresponding to each first virtual identification in N first virtual identifications which are distributed to each node in the DHT network into M parts; identifying each equalized load space by M*N second virtual identifications, wherein M and N are natural numbers, and M is more than or equal to 2; distributing the M*N second virtual identifications to each node in the current DHT network; and ensuring that each node is in charge of the load space corresponding to the second virtual identification which is distributed to each node. According to the load balancing realization method and device disclosed by the invention, the load of each node in the DHT network is guaranteed to be balanced.