The invention discloses a medical care instrument applied to cervical vertebra. The medical care instrument comprises a neck annular body, wherein a cushioning pad layer is arranged on the inner side face of the neck annular body; concave cavities are formed in the neck annular body; vibrators are arranged in the concave cavities; vibrating rods are arranged on the vibrators; vibrating ball bodies are arranged at the ends of the vibrating rods; the vibrating rods run through the cushioning pad layer; a support rod, which is matched with afterbrain in shape, is arranged at the top of the neck annular body; a sliding groove is formed in the sidewall of the support rod; a rolling shaft is arranged in the sliding groove; rubber massaging pillars are arranged on the rolling shaft; rubber massaging ball bodies are arranged at the ends of the rubber massaging pillars; a massaging motor is arranged at the bottom of the sliding groove; an eccentric wheel is arranged on the main shaft of the massaging motor; a conveying belt is arranged between the eccentric wheel and the rolling shaft; a pin shaft and a stressed spring are arranged on the joint of the support rod and the neck annular body; and the pin shaft runs through the stressed spring and reaches the part of the afterbrain of a human body under the action of the stressed spring. The medical care instrument disclosed by the invention is simple in structure, convenient to operate, good in service stability, strong in applicability and good in practicability.