Container manufacturing method and device

A container manufacturing device comprising at least one lower mold seat having a mold cavity, multiple protruding lower guide bodies being arranged along the circumference of the mold cavity at intervals, a press board being disposed above the lower mold seat, the press board being formed with a cutting section corresponding to the circumference of the lower mold seat, multiple protruding upper guide bodies being arranged on the press board and aimed at the intervals between the adjacent lower guide bodies of the lower mold seat, the lower guide bodies being steel balls which are fixed on the lower mold seat by a lower fixing seat, the lower fixing seat being formed with a substantially reverse trumpet-shaped dent corresponding to each steel ball, the steel balls being rollably positioned within the dent, the press board having a retaining section for retaining a board body, an upper mold seat being disposed above the press board, the upper mold seat having a projecting upper mold block formed with a shape corresponding to the shape of the mold cavity of the lower mold seat, the press board being formed with a perforation corresponding to the upper mold block, the upper mold block being pressed to pass through the perforation into the mold cavity, whereby when the press board is pressed down, the interlaced upper and lower guide bodies clamp and press the circumference of the board body to form regular crimps thereon.