The investigators will evaluate the comparative effectiveness and safety of Motion Style Acupuncture Treatment (MSAT) therapy for acute neck pain compared to acupuncture.

This is a multi-center, randomized, controlled, comparative effectiveness clinical trial for acute neck pain. Motion style acupuncture requires a part of the patient's body to move passively or actively while acupuncture needles are retained.

Inclusion Criteria:

• Neck pain onset or worsen within one month
• VAS of neck pain on movement or at rest of 5 or higher
• Age between 19 and 70 years old
• Participants who wrote a informed consent

Exclusion Criteria:

• Participants who diagnosed with the serious disease that can cause pain (e.g. Migration of cancer reaching to spine, fracture of spine, dislocation of spine)
• Progressive neurologic deficits or severe neurologic deficits
• Participants who diagnosed with a soft tissue disease that can cause pain (Cancer, fibromyalgia, RA, or goat)
• Chronic disease (e.g. Cardiovascular disease, kidney disease, dementia, diabetic neuropathy, or epilepsy)
• Participants taking steroids, immunosuppressants, or psychotropic medication
• Participants who could be inadequate or unsafe at acupuncture (e.g. Hemorrhagic disease, severe diabetes or taking anticoagulant drug)
• Participants who took NSAIDs or acupuncture within 3 days
• Participants who had undergone cervical surgery within 3 months
• Participants who had a traffic accident within a month
• Pregnant or women who planned to conceive
• Participants who had participated in other clinical trial within 1 month, or have plan for participation in other trial within 6 months from enrollment
• Participants who can not write informed consent
• Participants who is difficult to participate in the trial according to investigator's decision