Hair implantation needle

The utility model discloses a hair planting needle which comprises a connecting rod, a limiting head is arranged at the end of the connecting rod, a counter bore is formed between the connecting rod and the limiting head, cutting teeth are arranged at the end of the limiting head, a flow channel is formed in the limiting head, a blood guide hole is formed in the outer side, located at one end of the connecting rod, of the limiting head, and the blood guide hole is communicated with the interior of the flow channel. The outer side of the limiting head is provided with convex rings at equal intervals, the outer side of the connecting rod is provided with two clamping grooves, the hair transplanting needle is cut in through the cutting teeth at the end part of the limiting head, and the included angle between the cutting teeth and the horizontal plane is 30-60 degrees, so that the pain of a hair transplanting person and the bleeding amount of a cutting opening can be reduced in the cutting-in process, and the in