NOVELTY - The method involves forming a plastic deformation film (10) on a surface (5a) of a substrate (5) using a plastic deformation material under reduced-pressure conditions. The plastic deformation film is expanded and drawn by high-pressure gas into recesses (5b) by encapsulating the high-pressure gas in the gas-permeable material and discharging the gas into each of the recesses while limiting the plastic deformation material from entering the recesses to manufacture a hollow structural member. Each recess is opened toward the surface of the substrate.    USE - Method for manufacturing a hollow structural member of a honeycomb structure in a regenerative medicine. Can also be used for manufacturing an anisotropic functional member e.g. flare micro lens array, anisotropic conductive film and substrate, for cell culture, flare element of optical element, and separator for a fuel cell and a filter.    ADVANTAGE - The method enables manufacturing of the hollow structural member with a pitch space among the hollows of below 30 micrometers and without damaging the plastic deformation materials. The method reduces the fluctuations in pressure of the gas to be discharged from each of the recesses toward the plastic deformation film, thus improving the dimensional accuracy of the hollow structural member, and reducing the manufacturing time of the hollow structural member. The method prevents the gas-permeable material from being deformed.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a substrate for manufacturing a hollow structural member using a plastic deformation material comprising multiple recesses    (2) an apparatus for manufacturing a hollow structural member.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram illustrating a formation of deformation film on a substrate for hollow structural member production of an apparatus for manufacturing a hollow structural member.    Material coating apparatus (3)    Hermetically sealed vessel (4)    Substrate (5)    Surface (5a)    Recesses (5b)    Material ejection apparatus (6)    Pressurizing-depressurizing pump (7)    Discharge valve (8)    Pressure-regulating valve (9)    Plastic deformation film (10)