The invention relates to a hair follicle extraction device and an extraction method thereof. The device comprises a hollow tube and a hair push rod, wherein the hair push rod is arranged in a hollow cavity of the hollow tube, a needle is arranged at the lower end of the hair push rod and extends out of the hollow tube, a groove is formed in one side of the needle, and the hair push rod is controlled through a control button. The length of the hollow tube is 11-13 cm, the tube diameter is 1 cm, the exposure length of the needle is 5-25 mm, the needle diameter is 0.8-1.8 mm, and the extraction method comprises the steps of routine examination before transplantation, hair follicle detection, image design, angle customization, hair follicle extraction, hair follicle separation, hair follicle planting and care after planting. By the adoption of the extraction device and the extraction method, the speed of hair follicle extraction can be effectively improved, hair loss, cicatricial alopeciaand scant eyebrows, eyelashes, beards and other parts can be safely and efficiently handled, and the hair transplanting process is achieved by adopting a reasonable technology and using the shortest time.