Ear acupuncture bloodletting three-edged needle

The utility model belongs to the technical field of medical instruments, and particularly relates to an ear acupuncture bloodletting three-edged needle which comprises a needle seat and a positioner, a moving cavity and a needle groove are formed in the needle seat, a pressing block and a first spring are arranged in the moving cavity, a needle body and a clamping seat are arranged on the pressing block, the clamping seat is hinged to a cover plate, and the positioning device is arranged on the cover plate. A clamping hole is formed in the clamping seat, a second spring and a clamping block are arranged in the cover plate, the clamping block is connected with the clamping hole in a clamped mode, the number of the needle bodies is three, the three needle bodies are arranged at the bottom end of the pressing block side by side, the lower ends of the three needle bodies are vertically located in three needle grooves in the lower end of the interior of the needle seat respectively, and the pressing block is arran