The invention discloses an LED lamp. The LED lamp includes a fixed seat, sliding grooves, sliding groove openings, buckling grooves, connecting seats, copper rings, wire holes, a lampshade, a luminescent assembly, a base, and a transparent plate; the fixed seat is of a cylindrical structure, the three sliding grooves are formed in the bottom of the outer wall of the fixed seat at equal intervals,the sliding groove openings are formed in the sliding grooves, wherein the diameter of the sliding groove openings is greater than that of the sliding grooves, the three rectangular buckling grooves are formed in the upper portions of the sliding grooves at equal intervals, the three connecting seats are evenly arranged at the top of the fixed seat, the two non-contact arc copper rings are arranged in the fixed seat, and the wire holes are formed in the tops of the two copper rings; and the lampshade is connected to the bottom of the fixed seat, the luminescent assembly is arranged in the lampshade, the base is connected with the bottom of the lampshade in a threaded mode, and the transparent plate is arranged in the base. According to the LED lamp, the lampshade and the fixed seat are mounted in a separated mode, the replacing cost is reduced, the mounting speed is high, and the LED lamp is unlikely to fall off.