The invention discloses an acoustic unidirectional hyper surface, which comprises a first plate and a second plate, wherein the first plate is provided with a part for phase control on an incident acoustic wave; the material of the second plate is a zero-refractive index material; the first plate and the second plate are arranged parallelly; and the gap between the first plate and the second plate is smaller than 1 mm. According to the acoustic unidirectional hyper surface disclosed by the invention, in the case of unidirectional transmission, unidirectional arbitrary control on a transmitted acoustic wave can be realized, the thickness of the designed hyper surface is only 0.57 wavelengths, and actual applications, such as the application in an integrated acoustic device, can be greatly promoted.