The utility model provides a device for culturing Chinese Caterpillar Fungus in a large scale to overcome the shortcomings that exist in a general culturing method: the culturing cost is high and yield is low without economic value. The utility model has round, thin and flat, monolayer sealed stereo structure, with one stereo opening being arranged at one end above the device and the other stereo opening at the same end with the opening; one groove and the other groove are arranged at a position where the two stereo openings are corresponding to each other; each opening is provided with a plug, and one side of the thin and flat, monolayer sealed stereo structure is provided with a horizontal stripy groove, and a magnetic knife is arranged in the thin and flat, monolayer sealed stereo structure; the upper part and the lower part of the magnetic knife are semicircular, and the two sides are thin knife-shaped. The effects of the utility model are: the device is a set of a static culturing equipment with the design of the groove, thus mutual overlapping of the devices is possible; the yield can be increased to some extent; the yield is increased when growth points are further increased due to the fact that mycelium can be cut into smaller units through the design of the magnetic knife; easy air circulation is available through the design of the other opening, facilitating the growth and harvest of the Chinese Caterpillar Fungus.