A resource allocation method for Device-to-Device, D2D, signal transmission, comprising steps of: determining, by a base station, configuration information related to a resource allocation mode to be adopted by a User Equipment, UE, the resource allocation mode comprising one of a network scheduling mode and a UE autonomous selection mode ; and transmitting, by the base station, the configuration information to the UE , to enable the UE to select a resource allocation mode from one of the network scheduling mode and the UE autonomous selection mode, the configuration information comprising Quality of Service, QoS, information of a D2D service required in each resource allocation mode; wherein the network scheduling mode is a mode in which the UE transmits a D2D signal on a resource indicated by the resource allocation information; and the UE autonomous selection mode is a mode in which the UE transmits the D2D signal on a resource selected by the UE initiatively from a resource pool, wherein the D2D service comprises a D2D discovery service and a D2D communication service; the step of determining, by the base station, the configuration information related to the resource allocation mode to be adopted by the UE further comprises: receiving, by the base station in advance, support capability for the resource allocation mode and resource requirement information reported by the UE; and determining, by the base station, the configuration information related to the resource allocation mode to be adopted by the UE in accordance with the support capability reported by the UE. determining, by a base station, configuration information related to a resource allocation mode to be adopted by a User Equipment, UE, the resource allocation mode comprising one of a network scheduling mode and a UE autonomous selection mode ; and transmitting, by the base station, the configuration information to the UE , to enable the UE to select a resource allocation mode from one of the network scheduling mode and the UE autonomous selection mode, the configuration information comprising Quality of Service, QoS, information of a D2D service required in each resource allocation mode; wherein the network scheduling mode is a mode in which the UE transmits a D2D signal on a resource indicated by the resource allocation information; and the UE autonomous selection mode is a mode in which the UE transmits the D2D signal on a resource selected by the UE initiatively from a resource pool, wherein the D2D service comprises a D2D discovery service and a D2D communication service; the step of determining, by the base station, the configuration information related to the resource allocation mode to be adopted by the UE further comprises: receiving, by the base station in advance, support capability for the resource allocation mode and resource requirement information reported by the UE; and determining, by the base station, the configuration information related to the resource allocation mode to be adopted by the UE in accordance with the support capability reported by the UE. receiving, by the base station in advance, support capability for the resource allocation mode and resource requirement information reported by the UE; and determining, by the base station, the configuration information related to the resource allocation mode to be adopted by the UE in accordance with the support capability reported by the UE. <EOS>