Abstract: [Objective] To introduce a device for signal acquisition and stimulation of the surface sympathetic nervous system of the posterior longitudinal ligament in cervical spine surgery. [Methods] the herringbone device is made of insulating plastic sheet and thin metal guide wire. When in use, the probe is inserted into the intervertebral space, the metal wire is closely attached to the posterior longitudinal ligament of the posterior edge of the vertebral body, and the guide wire end is connected with a biological signal processor. Information is gathered by electrical stimulation at the signal input and at the signal output. The relationship between the sympathetic nervous system distribution of the posterior longitudinal ligament and the symptoms of sympathetic cervical spondylosis was observed. [Results] The device can effectively release and collect signals from the posterior longitudinal ligament of the cervical spine, and can locate the level of sympathetic cervical spondylosis. [Conclusion] The signal collector of posterior longitudinal ligament of sympathetic cervical spondylosis was ingeniously designed, simple in structure, safe and effective, and was worthy to be used in the experiment and operation of cervical spondylosis.