A method for manufacturing a bottle that is formed in a bottomed tubular shape wherein the bottle includes: a trunk section which is formed in a tubular shape; and a bottom section formed in the shape of a cup including a heel part having an upper end opening which is connected to a lower end opening of the trunk section, and a bottom wall section which blocks a lower end opening of the heel part; the bottom wall section includes a contact part positioned at an outer circumferential edge thereof and a deformable tube part that has a multilevel topped tubular shape, is provided upright at the contact part, and blocks an inside of the contact part; the deformable tube part includes a rising circumferential wall part that is continuous to the contact part from an inner side in a bottle radial direction and extends toward an upper side that is an inner side in a direction of a bottle axis, an annular movable wall part that protrudes from an upper end of the rising circumferential wall part toward the inner side in the bottle radial direction, and a depressed circumferential wall part that extends upward from an inner end of the movable wall part in the bottle radial direction; the movable wall part is arranged to be movable upward relative to a connected portion connected with the rising circumferential wall part along with the depressed circumferential wall part; the method comprising: a primary blow molding process of performing biaxial stretch blow molding on a preform to obtain a primary intermediate molded article; a heat treatment process of heating the primary intermediate molded article to be forcibly shrunken and molded into a secondary intermediate molded article; and a secondary blow molding process of performing blow molding on the secondary intermediate molded article to obtain the bottle, the method being charatcerized in that the movable wall part has a plurality of ribs that are radially arranged around the bottle axis, the ribs being configured such that a plurality of recesses recessed upward in a curved surface shape are intermittently arranged in the bottle radial direction. a trunk section which is formed in a tubular shape; and a bottom section formed in the shape of a cup including a heel part having an upper end opening which is connected to a lower end opening of the trunk section, and a bottom wall section which blocks a lower end opening of the heel part; the bottom wall section includes a contact part positioned at an outer circumferential edge thereof and a deformable tube part that has a multilevel topped tubular shape, is provided upright at the contact part, and blocks an inside of the contact part; the deformable tube part includes a rising circumferential wall part that is continuous to the contact part from an inner side in a bottle radial direction and extends toward an upper side that is an inner side in a direction of a bottle axis, an annular movable wall part that protrudes from an upper end of the rising circumferential wall part toward the inner side in the bottle radial direction, and a depressed circumferential wall part that extends upward from an inner end of the movable wall part in the bottle radial direction; the movable wall part is arranged to be movable upward relative to a connected portion connected with the rising circumferential wall part along with the depressed circumferential wall part; the method comprising: a primary blow molding process of performing biaxial stretch blow molding on a preform to obtain a primary intermediate molded article; a heat treatment process of heating the primary intermediate molded article to be forcibly shrunken and molded into a secondary intermediate molded article; and a secondary blow molding process of performing blow molding on the secondary intermediate molded article to obtain the bottle, a primary blow molding process of performing biaxial stretch blow molding on a preform to obtain a primary intermediate molded article; a heat treatment process of heating the primary intermediate molded article to be forcibly shrunken and molded into a secondary intermediate molded article; and a secondary blow molding process of performing blow molding on the secondary intermediate molded article to obtain the bottle, the method being charatcerized in that the movable wall part has a plurality of ribs that are radially arranged around the bottle axis, the ribs being configured such that a plurality of recesses recessed upward in a curved surface shape are intermittently arranged in the bottle radial direction.