Spaceflight precision device cleaning device

The utility model discloses a spaceflight precision device cleaning device. The spaceflight precision device cleaning device comprises a supporting rod and a cleaning component. The supporting rod is a strip-shaped component. The cleaning component comprises an inner-layer structure and an outer-layer structure. The cleaning component is arranged on the supporting rod in the mode that the inner-layer structure wraps one end of the supporting rod, the inner-layer structure is made of hydrophobicity phenolic foam, the outer-layer structure is made of hydrophilia polyurethane foam, and the outer-layer structure is bonded to the inner-layer structure through epoxy resin. The cleaning device is suitable for cleaning a spaceflight precision device, particularly a precise pipe fitting of the small inner diameter; the physical strength and tensile strength of the hydrophobicity phenolic foam are better, supporting can be provided, the hydrophilia polyurethane foam has good hydrophilia, cleaning liquid can be absorbed fully, when the cleaning liquid enters the pipe fitting, the inner wall of the pipe fitting can make full contact with the cleaning liquid, and thus the inner wall of the pipe fitting can be fully cleaned up; furthermore, the inner wall of the pipe fitting cannot be scraped and damaged by the hydrophilia polyurethane foam.