The invention discloses a device and manufacturing technology for compositing a non-woven fabric with a breathable film. The device comprises a rack, a non-woven fabric unwinding mechanism, a compositing device, a breathable film unwinding mechanism, an aftertreatment mechanism and a product winding mechanism are sequentially arranged under the rack, and a heat treatment mechanism used for volatilizing a solvent is arranged over the rack. The device and the manufacturing technology have the advantages that an adhesive is sprayed on one face of the breathable film, the breathable film has the certain ductility, when the breathable film and the non-woven fabric are composited, a first roller group has a rotation speed difference, the breathable film is firmly composited and bonded with the non-woven fabric after being stretched, and then the stretched part of the breathable film is trimmed by a heat setting roller group and a cooling setting roller group which are arranged on the down stream, so that the effects of being high in appearance stereoscopic impression and soft in handfeel are formed on the surface of the non-woven fabric.