Abstract: The present disclosure relates to a port configuration method and device, the method comprises: receiving antenna port configuration parameters, the antenna port configuration parameters being adapted to information on transmission capability of a terminal; and determining an association relationship set between port selection parameters and demodulation reference signal DMRS port identifiers according to the antenna port configuration parameters. The present disclosure determines the association relationship set adapted to the transmission capability of the terminal by using the antenna port configuration parameters sent by a base station, and obtains the DMRS port in accordance with the determined antenna port data so as to configure the port, thereby avoiding blind configuration on the port of the terminal, improving efficiency of the terminal configuration, and reducing signaling overhead of the configuration.