Environment protection coffin

An environment protection coffin comprising a coffin body made by folding up a patterned sheet material into shape, said patterned sheet material being cut subject to a predetermined pattern, wherein said patterned sheet material comprises an outer shell, an inner shell, and at least one intermediate lining shell sandwiched in between said outer shell and said inner shell, said outer shell and said inner shell and said at least one intermediate lining shell each comprising a rectangular base panel, two elongated side panels at two opposite long sides of said base panel, two end flaps at two opposite short sides of said base panel, and two pairs of end lugs respectively longitudinally extended from two distal ends of each of said elongated side panels, two longitudinal folding lines respectively longitudinally extended between the two opposite long sides of said base panel and said elongated side panels, and two transverse folding lines respectively transversely extended between the two opposite short sides of said base panel and said end flaps across the connection areas between the ends of said elongated side panels and said end lugs, said at least one intermediate lining sheet each having a plurality of transverse recesses arranged in parallel in the respective base panel and a plurality of reinforcing plates bonded to said transverse recesses.