A method and apparatus of key negotiation processing, which includes acquiring, by a control network element, a first key negotiation parameter and a second key negotiation parameter, and sending, by the control network element, the first key negotiation parameter and/or the second key negotiation parameter to the first user equipment UE and a second UE such that the first UE and the second UE generate a key according to the first key negotiation parameter and the second key negotiation parameter. Key negotiation may be performed between two UEs that perform proximity communication.