LED support, manufacturing method of LED support and LED light-emitting device

The invention is suitable for the technical field of LED production, and provides an LED support, a manufacturing method of the LED support and an LED light-emitting device. The LED support comprises a metal substrate and a packaging body, at least part of the metal substrate is embedded in the packaging body, the metal substrate comprises a plate body and a footing arranged on the periphery of the plate body, the back face of the footing is provided with an exposed area and an insertion strip area and is provided with a notch, the notch is at least formed in the insertion strip area, and the packaging body comprises a main body part and an insertion strip part. The main body part is formed on the front surface of the metal substrate and covers the edge of the plate body; the insertion strip part is formed in the insertion strip area and is integrally connected to the main body part; the footing is exposed out of the packaging body corresponding to the exposed area, and the footing is provided with an inserti