A consultant transfer method, comprising: an application server forwarding conversation negotiation signaling between a service user equipment (UE B) and a target user equipment (UE C), wherein the service user equipment is a user equipment subscribing to a consultant transfer service, and the service user equipment is in a conversation holding state with a first user equipment (UE A); the conversation negotiation signaling carries a consultant transfer service identifier; according to the consultant transfer service identifier, the application server determining, after receiving a conversation hang-up request from the service user equipment, that the target user equipment agrees to establish a conversation with the first user equipment; the application server transferring a conversation of the first user equipment to the target user equipment; wherein the application server forwarding the conversation negotiation signaling between the service user equipment and the target user equipment comprises: the application server receiving a call request message sent by the service user equipment to the target user equipment wherein the call request message carries a consultant transfer service code for notifying the application server that the conversation negotiation is consultant transfer service negotiation and a number of the target user equipment; the application server extracting the consultant transfer service code and the number of the target user equipment from the call request message, recording the consultant transfer service code and calling the target user equipment. an application server forwarding conversation negotiation signaling between a service user equipment (UE B) and a target user equipment (UE C), wherein the service user equipment is a user equipment subscribing to a consultant transfer service, and the service user equipment is in a conversation holding state with a first user equipment (UE A); the conversation negotiation signaling carries a consultant transfer service identifier; according to the consultant transfer service identifier, the application server determining, after receiving a conversation hang-up request from the service user equipment, that the target user equipment agrees to establish a conversation with the first user equipment; the application server transferring a conversation of the first user equipment to the target user equipment; wherein the application server forwarding the conversation negotiation signaling between the service user equipment and the target user equipment comprises: the application server receiving a call request message sent by the service user equipment to the target user equipment wherein the call request message carries a consultant transfer service code for notifying the application server that the conversation negotiation is consultant transfer service negotiation and a number of the target user equipment; the application server extracting the consultant transfer service code and the number of the target user equipment from the call request message, recording the consultant transfer service code and calling the target user equipment. the application server receiving a call request message sent by the service user equipment to the target user equipment wherein the call request message carries a consultant transfer service code for notifying the application server that the conversation negotiation is consultant transfer service negotiation and a number of the target user equipment; the application server extracting the consultant transfer service code and the number of the target user equipment from the call request message, recording the consultant transfer service code and calling the target user equipment.