Metal film integrated shielding cable for space navigation and manufacturing method thereof

The invention provides a metal film integrated shielding cable for aerospace and a manufacturing method of the metal film integrated shielding cable. The metal film integrated shielding cable comprises an inner conductor (1), an insulating layer (2), a composite metal film (3) and a sheath layer (4), the inner conductor (1) is positioned on the inner side of the insulating layer (2); the composite metal film (3) is a composite copper-silver plating layer plated on the surface of the insulating layer (2); and the sheath layer (4) is positioned on the outer side of the composite metal film (3). By performing surface modification and metallization on the cable insulation layer, an insulation and shielding integrated structure is constructed to replace a traditional wire mesh shielding structure, the weight of the shielding cable for aerospace is greatly reduced, and meanwhile, good electromagnetic shielding performance, space environment adaptability and the like are kept; and the requirements of advanced spacec