A reference signal configuration method used in a network side device, comprising: configuring a reference signal configuration parameter for a User Equipment, UE; and transmitting the reference signal configuration parameter to the UE, wherein the reference signal configuration parameter is a control channel reference signal configuration parameter, the control channel reference signal configuration parameter comprises at least one of a frequency-domain density of a control channel reference signal, a minimum frequency domain resource allocation unit of a control channel, a minimum frequency domain resource allocation unit of the control channel reference signal, and an identifier of a resource occupation symbol of the control channel reference signal, and the reference signal configuration parameter is used by the UE to transmit a reference signal, wherein the frequency-domain density of the control channel reference signal is a density of the control channel reference signal in a resource unit in the frequency domain; the minimum frequency domain resource allocation unit of the control channel is a minimum number of PRBs for transmission of the control channel; the minimum frequency domain resource allocation unit of the control channel reference signal is a minimum number of PRBs for transmission of the control channel reference signal; the identifier of the resource occupation symbol of the control channel reference signal is an identifier of a symbol occupied by a resource of the control channel reference signal, the symbol occupied by the resource of the control channel reference signal is determined through the identifier; wherein the resource occupation symbol of the control channel reference signal comprises at least one symbol in the control channel. configuring a reference signal configuration parameter for a User Equipment, UE; and transmitting the reference signal configuration parameter to the UE, wherein the reference signal configuration parameter is a control channel reference signal configuration parameter, the control channel reference signal configuration parameter comprises at least one of a frequency-domain density of a control channel reference signal, a minimum frequency domain resource allocation unit of a control channel, a minimum frequency domain resource allocation unit of the control channel reference signal, and an identifier of a resource occupation symbol of the control channel reference signal, and the reference signal configuration parameter is used by the UE to transmit a reference signal, wherein the frequency-domain density of the control channel reference signal is a density of the control channel reference signal in a resource unit in the frequency domain; the minimum frequency domain resource allocation unit of the control channel is a minimum number of PRBs for transmission of the control channel; the minimum frequency domain resource allocation unit of the control channel reference signal is a minimum number of PRBs for transmission of the control channel reference signal; the identifier of the resource occupation symbol of the control channel reference signal is an identifier of a symbol occupied by a resource of the control channel reference signal, the symbol occupied by the resource of the control channel reference signal is determined through the identifier; wherein the resource occupation symbol of the control channel reference signal comprises at least one symbol in the control channel.