Preparation method of environment-friendly mute floor

The invention discloses a preparation method of an environment-friendly mute hard PVC floor. The hard PVC floor does not use a plasticizer, the lowest layer adopts a novel foaming PE cushion layer, after PE is foamed, crosslinked and molded, a pressure-sensitive adhesive is applied to the back surface, and a release film is pasted, in actual production and use, only the release film needs to be torn off, and the release film is pasted to the back surface of a conventional hard PVC floor, so that the environment-friendly mute hard PVC floor is obtained. No hot melt adhesive is used, the gluing procedure is omitted, harmful substances generated when the adhesive is in a molten state are avoided, environmental protection and no pollution are achieved, the working environment of staff is improved, and the environmental protection property of the product is improved; in addition, the production process is effectively accelerated, and efficiency is improved; and equipment such as a feeding machine, a roller coater,