PROBLEM TO BE SOLVED: To provide a method for forming a hydrogen bubble body capable of involving and stably holding hydrogen simultaneously or directly after the generation of the hydrogen, and a hydrogen bubble body forming tool.SOLUTION: Provided is a method of forming a hydrogen bubble body characterized in that a hydrogen generation agent and a foaming material made of a polymer compound and a surfactant are charged into water, and the components of the foaming material are applied along the water boundary of hydrogen gas bubbles generated with the hydrogen generation agent. Also provided is a hydrogen bubble body forming tool including a mesh body storing a hydrogen generation agent and a water-soluble cell storing a foaming material made of a polymer compound and a surfactant, and applying the components of the foaming material along the water boundary of the hydrogen gas bubbles charged into water and generated with the hydrogen generation agent to form a hydrogen bubble body.SELECTED DRAWING: Figure 1
