The invention discloses an anti-damp floor and a manufacturing method thereof. The anti-damp floor comprises a wear-resistant layer with a protection function, a decoration layer with an attractive function, a base material layer with a supporting function and a balance layer with an anti-damp and anti-deformation function from top to bottom in sequence. The wear-resistant layer is a transparent oil paint layer containing nano aluminum oxide with the mass fraction of 1-5%; the decoration layer is made of PVC colored film paper; the decoration layer and the base material layer are glued throughbi-component polyurethane resin glue, and a waterproof layer made of thermoplastic resin glue is further arranged between the base material layer and the balance layer. Compared with an existing anti-damp floor, the anti-damp floor has excellent wear resistance and waterproof and dampproof performance, the manufacturing method is simple, economical and practical, the flatness is good, and the aimof environmental protection is achieved; in addition, according to different kinds of added additives, the dampproof floor has multiple additional functions such as mold prevention, sterilization, oxidation resistance and odor removal and has high practical value.