The invention discloses a one-way moisture-transferring fabric and a processing method thereof. The fabric is in a double-layer double-side mesh structure, wherein one side of the fabric which is close to the skin i.e., an internal layer uses polypropylene fibers while the other side i.e., an external layer uses terylene fibers, and the internal layer and the external layer are connected by terylene macrofibers with recesses on the surface and special-shaped cross sections. The processing method of the fabric comprises: that in the process of weaving the fabric, polypropylene fibers are selected as internal layer materials, polyester fibers are selected as external layer materials, and terylene macrofibers with recesses on the surface and special-shaped cross sections are selected as connecting material, thereby weaving the double-layer double-side mesh structured fabric whose internal layer is polypropylene fibers, external layer is terylene fibers, and the internal layer and the external layer are connected by the terylene macrofibers with recesses on the surface and special-shaped cross sections; that connection points which are evenly arranged are established between the internal and the external layers, wherein the connection points of the internal and the external layers are connected to each other through the terylene macrofibers; and that in a dyeing after-finishing process, the fabric is processed to be hydrophilic, quick-drying, and soft. The fabric in the invention is well in hygroscopic property and moisture-transferring property, and has the effects of one-way moisture transferring and quick drying.