The invention can provide a carbon heater in which respective carbon fibers do not spread out, even the fibers are thinned for giving predetermined resistance and the fibers can have predetermined strength, a method for manufacturing the carbon-based heater, a heater and a heating device. The heater comprises a glass tube having a carbon-based heater sealed therein, in which the carbon heater is formed by firing a material formed by weaving a plurality of continuous fibers such that at least a weft alternatively passes through above or below each warp, and respective warp alternately passing through above or below each weft.