The invention discloses an LED lighting high-efficiency heat-radiating aluminum baseplate low cost, simple technology and good heat radiation, an LED light source and making methods thereof. The LED source comprises an LED chip (5) and an LED lighting high-efficiency heat-radiating aluminum baseplate, wherein the LED lighting high-efficiency heat-radiating aluminum baseplate comprises an aluminumbaseplate (1). Alumina thermally-conductive insulating layers (2) are attached to the upper surface and the lower surface of the aluminum baseplate (1), an aluminum layer is deposited on the alumina thermally-conductive insulating layer (2) attached to the upper surface of the aluminum baseplate (1) to form a conductive metal layer (3), the conductive metal layer (3) is etched to form an LED chipbase (31) and circuit connection lines (32), the conductive metal layer (3) except for spot welds, the chip and reserve positions for wiring is coated with an anti-welding layer (4), the LED chip (5)is bonded and fixed on the LED chip base (31) and forms LED lighting circuits connected in series or in parallel through the circuit connection lines (32), and the LED chip (5) and adjacent areas arecoated with silica gel or resin to form a protective layer (6).