Small needle knife is about 0.8mm in diameter, the front end with a flat tough an acupuncture tool. It is a product of the organic combination of traditional acupuncture technology and soft tissue release technique, which is a major progress in the modernization of acupuncture. Small needle knife concentrates the double action of knife and needle, through the peeling of knife, it can loosen the local adhesions, loosen the muscles, loosen the neurovascular pressure, improve the local blood circulation, reduce the concentration of pain-causing substances, eliminate local sterile inflammation, and make the pain relieved rapidly. Acupuncture can stimulate the qi of the meridians and strengthen the flow of qi and blood, thus unblocking the paralyzed and congested meridians and achieving the purpose of “no pain if you pass”. The advantages of small acupuncture therapy are that the treatment process is simple, not restricted by any environment and conditions, and the patient has no obvious pain and fear, no need to rest after the operation, and a short course of treatment, which is effective for various painful diseases such as neck, shoulder, waist and leg pain and soft tissue injury.