Tire vulcanization device

To provide a tire vulcanizer capable of solving problems of an electrical heating platen, which relate to the deformation at the time of tire vulcanization and to the replacement of the platen. The tire vulcanizer vulcanizes and molds a green tire placed in an outer mold by heating the green tire from the outer side and the inner side of the green tire, and is featured by including an electric platen (10) which is arranged to be in contact with each of the upper and lower sides of a container with the green tire placed therein, or to be embedded in each of the upper and lower portions of the container, so as to heat the green tire from the outside of the outer mold at the time of vulcanization, and which is formed into a doughnut-like disc shape and divided into a plurality of sections in the circumferential direction of the platen (10).