A tadalafil orally dissolving film and a preparation method thereof are provided. The tadalafil orally dissolving film consisting of specific components is prepared through a conventional process. Particularly, the tadalafil orally dissolving film is prepared by tadalafil, film-forming material, plasticizer, correctant, colorant and aromatic, wherein the film-forming material includes components of: (a) at least one member selected from polysaccharide； (b) at least one member selected from organic acid； and (c) at least one member selected from hydroxyalkyl cellulose. Compared with prior art, the tadalafil orally dissolving film provided by the present invention has an easy preparation process, no specific requirement on production devices and a storing stability, and is easy to reproduce, has a low requirement on storage conditions, and is easy to package, transport and store.
