Special cutting device for reverse osmosis membrane element outer shell

The utility model discloses a special cutting device for a reverse osmosis membrane element outer shell. The special cutting device for the reverse osmosis membrane element outer shell comprises a cuboid box, wherein the box comprises a box cover located on the upper portion and a box body located on the lower portion, a membrane element supporting frame is arranged in a box body inner cavity, the box cover is provided with a cutting seam in the long side direction, and a blade of a cutter can enter the cutting seam. The special cutting device for the reverse osmosis membrane element outer shell is of a box structure, and the box cover covers a membrane element and is provided with the seam where the blade can enter, so that cutting safety is facilitated, and dust is prevented from flying around. In addition, a membrane will not be cut when the fiber reinforced polymer outer shell of the membrane element is cut, the entrance depth of the blade of the cutter can be adjusted, and linear cutting can be realized easily.