A method and server for realizing load balance service of dynamic host configuration protocol

The invention discloses a realizing method and a server of DHCP load balance service, which comprises the following steps: a DHCP server receives a requesting message from a client terminal DHCP; the local load factor of the DHCP server is calculated; the local load factor is notified to other DHCP servers corresponding to the client terminal and the notice of the local load factor from other DHCP servers is received; the global load factor is calculated based on the local load factor and the load factor of other DHCP servers; the local load factor of the DHCP server is compared with the loadfactor of the global server. If the local load factor is less than or equal to the global load factor, then returning to step A; otherwise, the local broadcast information in the receiving information is discarded.