High-quality composite vacuum coating

The invention discloses a high-quality composite vacuum coating which comprises a first protective layer, a base body, a polarized light layer and a second protective layer which are arranged in sequence. The positions of the edges of the first protective layer, the base body, the polarized light layer and the second protective layer are further wrapped with a layer of molybdenum plate, the first protective layer is made of silicon carbide, the base body is made of hafnium oxide, the polarized light layer is made of polyvinyl alcohol, and the second protective layer is an aluminum-silicon alloy coating. The high-quality composite vacuum coating has the advantages of being good in quality, resistant to abrasion, dazzle and aging and being long in service life.