A net lamp and a decorative lamp, the net lamp including a plurality of conductive wires, a plurality of insulated wires, a plurality of lamp bodies disposed on the conductive wires, and a plurality of fasteners for fastening the conductive wires and the insulated wires; wherein the plurality of conductive wires and the plurality of insulated wires are connected to form a net-like structure by means of the plurality of fasteners. The decorative lamp includes the above described the net lamp.