The tea box is made entirely from corrugated paper. The package box can form four inner boxes with compartments and an outer box. The box uses no glue, and is formed by molding and folding after die cutting. A minimal amount of ink was used for the box, and twine rather than adhesive band is used to open and close the box. After package box molding, the two sides form an arc shape because of elastic force, creating beautiful curves. The flat form before molding can reduce storage space and cost, and make transport more efficient.