Provided in embodiments of the present document are a D2D discovery and communication method, a resource allocation method and a control node, wherein the resource allocation method includes: a control node obtaining D2D resource set information, wherein the D2D resource set includes a D2D discovery resource set and/or a D2D communication resource set; the control node or a D2D user equipment determining D2D discovery or communication scheduling resources of the D2D user equipment according to the D2D resource set information.