Scalp surveying and mapping instrument for craniocerebral sagittal plane

The utility model relates to a craniocerebral surgical instrument for neurosurgery, in particular to a scalp surveying and mapping instrument for a craniocerebral sagittal plane. The scalp surveying and mapping instrument comprises lug supports, supporting arms, a cross rod and a surveying and mapping pen, and is characterized in that a rotating shaft hole is formed on the lower part of each supporting arm, and the lower part of each supporting arm is arranged on a rotating shaft of the corresponding lug support through the corresponding rotating shaft hole; a threaded hole is formed on the upper part of each supporting arm; threads in opposite directions are arranged in the two threaded holes respectively, and the cross rod is arranged through the threaded holes; scales are arranged on the cross rod; threads matched with the threaded holes in the supporting arms are arranged at the two ends of the cross rod; a rotating handle is arranged on the cross rod; a sliding sleeve is arranged on the cross rod; a surv