Transmission method and system of uplink message

The present invention relates to a method and system for transmission of upstream messages, belonging to the mobile communication field. The method of the present invention comprises: a base station transmits when RANAP to the home gateway or a home base station HNB RNSAP message gateway need of such treatment, RUA message by the home base station to the RANAP or the RNSAP message transmitted to the home base station gateway, and instructs the home base station gateway in the RUA message or RNSAP message of the RANAP processing. With the technical solution of the present invention, the home base station gateway may be determined according to the indication information of the received uplink RUA message carried in the gateway whether the process RUA message carried in the message, thus greatly reducing the load of the home base station gateway.