Method and system for realizing registration of home node B (HNB)

The invention discloses a method and a system for realizing registration of home node B (HNB), and the method is implemented by the following steps: adopting acquired encryption/decryption information to encrypt configuration parameters and then going back to the HNB by a home node B management Server (HMS); and initiating registration to a home node B gateway by the HNB through the encrypted configuration information, decrypting the received configuration information through the HNB gateway (GW) by using the acquired encryption/decryption information and completing registration for the HNB according to the acquired configuration information via decryption. Therefore, the invention can realize reliable acquisition of important configuration parameters which are easy to be falsified by users and incapable of recovering effectiveness thereof in the subsequent flow, thus ensuring reliability of the HNB registration. Moreover, the method in the invention is in no need of initiating a querying flow to other network elements and realizes reliable registration of the HNB simply.