Heat dissipation device of LED lamp

The invention relates to a heat dissipation device of an LED lamp. The heat dissipation device of the LED lamp comprises a lampshade, a lamp base, LED chips, a metal PCB and a heat dissipation cover, wherein the LED chips are fixed to the metal PCB, the metal PCB is arranged in a concave cavity of the heat dissipation cover, one end of the heat dissipation cover is fixedly connected with the lampshade, and the other end of the heat dissipation cover is fixed to the lamp base. The heat dissipation device of the indoor LED lamp is simple in structure, heat dissipation can be carried out in a large-area mode, the cost of a product cannot be increased, and difficulty of packaging cannot be improved; due to the fact that the bird nest type heat dissipation device of the LED lamp is of a multi-branch structure, heat generated by LEDs can be dissipated in a parallel mode, and the heat dissipation area is increased under the condition that the space area is not increased; due to the fact that the heat dissipation device of the LED lamp is of a hollow structure, the weight is reduced, and heat dissipation can be well carried out; strength and rigidity of the heat dissipation device of the LED lamp can meet the requirement of use, and the heat dissipation device of the LED lamp can stably work. Mass production of the heat dissipation device of the indoor LED lamp can be well carried out, and marketization is facilitated.