This paper considers the key management issue of secure group communication in a highly mobile networking environment. In such environment, there are frequent joining and leaving of members due to roaming or suspending for a period. Inorder to preserve forward and backward confidentiality, it is necessary to rekey every time a member joins or leaves. This paper introduces a new state-based group key management framework suitable for highly mobile environment. In this scheme, a member enters “Park” state when it is going to roam or suspend for a period, when it becomes active again, it send a request to the key server to get the current group key and changes its state to “Active” again. No rekeying is needed for a roaming, and reliable delivery of rekeying messages is not required for “Park” members. The scheme can notably reduce the communication overhead and provide an efficient method for error recovery. This paper considers the key management issue of secure group communication in a highly mobile networking environment. In such environment, there are frequent joining and leaving of members due to roaming or suspending for a period. Inorder to preserve forward and backward confidentiality, it is necessary This paper introduces a new state-based group key management framework suitable for highly mobile environment. In this scheme, a member enters “Park ” state when it is going to roam or suspend for a period, when it becomes active again, it send a request to the key server to get the current group key and changes its state to “Active ” again. No rekeying is needed for a roaming, and reliable delivery of rekeying messages is not required for “Park ” members. The scheme can notably reduce the communication overhead and provide an efficient method for error recovery.