A double-face sound absorbing barrier comprises multiple sound absorbing wedges and a resonance silencing structure; the resonance silencing structure is formed by a peripheral support and a micropore thin plate; the peripheral support is a cuboid structure and is provided with an opening in one side surface; the micropore thin plate is arranged at the opening; the peripheral support at the opening and the interior of the micropore thin plate form a hollow cavity; each sound absorbing wedge is a prism structure; the multiple sound absorbing wedges are arranged on the outer surface of the side surface, opposite to the micropore plate, on the resonance silencing structure along the horizontal direction. The double-face sound absorbing barrier has the following beneficial effects that a transmission coefficient when low-frequency noise measured at a residential area side achieves the barrier is greatly improved, and the reflection quantity and diffraction quantity are reduced, so the problem of secondary or multiple noise pollution caused by the multiple reflection of the low-frequency noise at the residential area is solved, and the integral denoising effect is good; the energy of the low-frequency noise passing by the resonance silencing structure is greatly attenuated, the energy of the noise achieving the other side is maximumly limited and the aim of eliminating the noise is achieved.