A coffin includes a coffin main body； the coffin main body includes an upper frame, a lower frame, a wall and a first cover. The first cover includes a first outward cover and a first cover frame, which is located on the upper frame and connected to the coffin main body. The wall includes two long walls, two short walls, and a bottom wall. The two long walls and two short walls are connected and surround the upper frame and lower frame, and the bottom wall is located on the lower frame, allowing the bottom wall, two long walls and two short walls to form a container. The first outward cover, two long walls, and bottom wall are made of cardboard which is honeycomb cardboard； the first cover frame, the upper frame, and the lower frame are made of wood.
