LED bulb with good heat dispersion performance

The utility model discloses an LED bulb with good heat dispersion performance, comprising a metal heat dispersion body, a lampshade, an LED light source module, a lamp holder and a driving device. The lampshade is connected with the metal heat dispersion body, and the LED light source module is fixed at one end of the metal heat dispersion body and is positioned between the metal heat dispersion body and the lampshade. The metal heat dispersion body is provided with a heat dispersion main body and an auxiliary heat dispersion body positioned at one end of the heat dispersion main body, wherein the auxiliary heat dispersion body is provided with a plurality of heat dispersion fins, and the heat dispersion main body and the auxiliary heat dispersion body are integrally formed. In the utility model, the metal heat dispersion body is set as a form which comprises the heat dispersion main body and the auxiliary heat dispersion body positioned at one end of the heat dispersion main body, wherein the heat dispersion main body and the auxiliary heat dispersion body are integrally formed, therefore, heat can be transmitted out in time, and the heat dispersion performance is good.