The invention discloses a street lamp convenient to maintain. The street lamp comprises a lamp pole and a base arranged at the bottom of the lamp pole, an installation panel is arranged below the base and is connected with the base, a lamp arm is arranged at the top end of the lamp pole, is in a cylinder shape, and is horizontally arranged, one end of the lamp arm is connected with the side wall of the top end of the lamp pole, and the other end of the lamp arm is provided with a lamp base and a lampshade located below the lamp base. The street lamp is characterized in that the lamp base is fixedly connected with the other end of the lamp arm, the lampshade is movably connected with the lamp base, a first power source contact face is arranged at the bottom of the lamp base, and a second power source contact face is arranged at the top end of the lampshade; and the street lamp further comprises a lifting mechanism. When the street lamp convenient to maintain is maintained, only the lampshade needs to descend, height ascending of a worker is avoided, and cost and potential safety hazards caused by using a height ascending vehicle are avoided.