An LED bracket, LED bracket array, LED device and LED display screen are disclosed. The LED bracket includes a PCB circuit substrate and an insulating material. The PCB circuit substrate includes at least two electrically insulated electrode regions. Each electrode region includes a top electrode region, a side electrode region and a bottom electrode region. The side electrode region connects the top electrode region and the bottom electrode region into an integrated structure. The side electrode region is a side surface sunk from outside to an inner part of the PCB circuit substrate. The insulating material is filled in the side electrode region. An upper end surface and a lower end surface of the insulating material do not exceed an upper surface and a lower surface of the PCB circuit substrate. A thickness of the insulating material is less than a thickness of the PCB circuit substrate.