To provide a cervical vertebra orthosis, including a strap of bendable plate pieces made of wood or aluminum and a covering cloth piece put thereon, and wearing as you seems yourself.

In this cervical orthosis, a hook-and-loop fastener 4 is provided in the center of a bag-like cloth piece 2, gauze 3 is provided on the surface of the cloth piece 2, a button 1 is provided at one end of the cloth piece, and the strap 6 is provided at the opposite end of the cloth piece provided with the button 1 at the end. In the cloth piece 2, both ends of a plate piece 8 are provided with a cap 7, the thus constructed plate pieces are connected to each other by flat straps 5. The hook-and-loop fastener 4 is provided at one end of the bag-like cloth piece, and a core material including the flat straps 5, the surfaces of which are provided with the hook-and-loop fastener 4, is put in the opposite end thereof.