The invention relates to the technical field of vulcanization devices, and aims to solve the problem of complex vulcanization operation in the prior art, and provides a forming mold, a forming methodand a vulcanizing device. The forming mold provided by the invention comprises a material pressing mechanism, an upper mold, a lower mold and a core mold, wherein the upper mold, the lower mold and the core mold form a mold cavity together, a material storage tank communicating with the mold cavity is arranged on the upper mold, and the material pressing mechanism comprises material pressing bulges. When the forming mold is used, raw rubber stored in the material storage tank enters the mold cavity under the extrusion action of the material pressing bulges, vulcanization molding is carried outin a mold cavity, the vulcanization process is simple and convenient, and the vulcanization production efficiency can be effectively improved. The forming method is realized on the basis of the forming mold.