A method for triggering a terminal to send a sounding reference signal, comprising: configuring at least two preset resource patterns for the terminal through higher-layer signaling, wherein multiple types of resource information are preset in each resource pattern of the at least two preset resource patterns to indicate a resource; sending a triggering Physical Downlink Control Channel PDCCH to the terminal on a trigger subframe, so as to trigger the terminal to utilize the selected resource to send the sounding reference signal; characterized by obtaining requirement information of measurement, wherein the requirement information comprises a position and a bandwidth of a frequency band to be measured; selecting a resource for the terminal in the at least two preset resource patterns according to the requirement information; wherein the trigger subframe is used to indicate, to the terminal, a subframes to which the selected resource is applied, wherein multiple resources corresponding to multiple resource patterns in the at least two preset resource patterns are placed on the subframe or only one resource corresponding to one resource pattern is placed on the subframe; when the only one resource corresponding to the one resource pattern is placed on the subframe, the only one resource placed on the subframe is the selected resource; and when the multiple resources corresponding to the multiple resource patterns are placed on the subframe used for sending the sounding reference signal, the method further comprises: indicating, to the terminal, which resource pattern is corresponding to the selected resource in the multiple resource patterns. configuring at least two preset resource patterns for the terminal through higher-layer signaling, wherein multiple types of resource information are preset in each resource pattern of the at least two preset resource patterns to indicate a resource; sending a triggering Physical Downlink Control Channel PDCCH to the terminal on a trigger subframe, so as to trigger the terminal to utilize the selected resource to send the sounding reference signal; obtaining requirement information of measurement, wherein the requirement information comprises a position and a bandwidth of a frequency band to be measured; selecting a resource for the terminal in the at least two preset resource patterns according to the requirement information; wherein the trigger subframe is used to indicate, to the terminal, a subframes to which the selected resource is applied, wherein multiple resources corresponding to multiple resource patterns in the at least two preset resource patterns are placed on the subframe or only one resource corresponding to one resource pattern is placed on the subframe; when the only one resource corresponding to the one resource pattern is placed on the subframe, the only one resource placed on the subframe is the selected resource; and when the multiple resources corresponding to the multiple resource patterns are placed on the subframe used for sending the sounding reference signal, the method further comprises: indicating, to the terminal, which resource pattern is corresponding to the selected resource in the multiple resource patterns.