The invention relates to the technical field of medical equipment, particularly to a three-dimensional space cervical vertebrae rehabilitation instrument, which comprises a bed frame and a traction device, wherein a lying plate is arranged on the bed frame. The three-dimensional space cervical vertebrae rehabilitation instrument is characterized in that a three-dimensional space cervical vertebrae adjusting device is arranged in front of the lying plate and comprises a lifting locating rack, a Z-axis rotating plate, a hinge shaft, a neck supporting device and a head supporting device, the rear end of the Z-axis rotating plate is hinged with the lifting locating rack fixed on the bed frame, the front end of the Z-axis rotating plate is hinged with a lifting oil cylinder fixed on the bed frame, and the head supporting device and the neck supporting device are arranged at the upper end of the Z-axis rotating plate. The three-dimensional space cervical vertebrae rehabilitation instrument of the invention realizes the function of rotation at an optional angle in the three-dimensional space, restores physiologic front bends of cervical vertebrae, and exercises the functions of cervical vertebrae while carrying out traction, so as to effectively prevent deterioration of the physiologic curvature of the cervical vertebrae. The three-dimensional space cervical vertebrae rehabilitation instrument has a novel structure, is convenient in operation, can exercise the functions of cervical vertebrae while carrying out traction, and can restore the physiologic front bends of cervical vertebrae and reconstruct muscle force balance of muscles around the cervical vertebrae.