The invention discloses a buried lamp which comprises a lamp base and a wire. The lamp base is provided with a first through hole allowing a wire to be contained and to penetrate, a first groove is formed in the lamp base, the side wall or bottom wall of the first groove is connected with the end of the first through hole, sealant is arranged in the first groove and is blocky or thick, the sealantis attached to the outer surface of the wire, and the sealant is attached to the circumferential surface of the first through hole. The buried lamp guarantees sealing, and water mist is prevented from being generated.