The invention provides an LED bracket and a preparation method thereof, which relate to the technical field of the LED bracket. An LED support is prepared by that following step: sputtering, pressingfilm, exposing, developing, electroplating copper, grinding, sandblasting and silver plating. The LED bracket prepared by the process has good conductive circuit pattern, good flatness of the whole bracket, and the LED bracket has excellent corrosion resistance, high temperature resistance, high brightness uniform silver plating layer, and the product result is fine. The preparation method is easyto control and easy to operate, which is helpful to improve the adhesion between the coating and the substrate and suitable for industrial application.