A kind of cervical vertebra of the utility model system supports lead device, it includes: a flexible ontology, its both ends has a first end and a second end, and first end is opposite with the second end, make ontology around for a C-shape, the outside of first end and the second end is equipped with one first engaging portion and one second engaging portion, and the first engaging portion and the second engaging portion are removable combination, the spacing between first end and the second end is adjusted, thereby to wear the neck of one user of what.本新型係一種頸椎撐引器，其包括有：一具可撓性之本體，其兩端具有一第一端部及一第二端部，且第一端部與第二端部相對，使本體環繞為一C形狀，第一端部與第二端部之外側設有一第一結合部及一第二結合部，第一結合部與第二結合部係可拆式結合，藉此調節第一端部與第二端部之間的間距，以配戴於一使用者之頸部。
