The present invention provides a manufacturing method of a honeycomb structure, capable of producing a honeycomb molded product with a normal shape, such as roundness, by suppressing a torque appliedto an extrusion molding machine to a low level and using a molding material that maintains a balance between fluidity and shape retention. The manufacturing method of a honeycomb structure including:a dry mixing step of dry-mixing raw materials to form the honeycomb structure by a hatch treatment, a wet mixing step of adding a liquid including at least one selected from group consisting of water,a surfactant, a lubricant and a plasticizer to a dry mixture obtained in the dry mixing step, to perform wet mixing, a kneading step of kneading a wet mixture obtained in the wet mixing step, and a forming step of extruding a forming material prepared in the kneading step, wherein in the dry mixing step, a used forming material passed through the forming step is added as a part of the raw material, to perform dry mixing, and the kneading step includes a liquid re-adding step of further adding the liquid in a process of kneading the wet mixture.