Novel membrane spraying preparation for skin trauma and preparation method

The invention discloses a medicinal membrane spraying preparation for skin trauma and a preparation method thereof, and relates to the field of medicinal preparations. The medicinal membrane spraying preparation consists of a blank membrane spraying preparation and medicinal components dissolved in the blank membrane spraying preparation and having skin trauma treating effective concentration. The medicinal membrane spraying preparation is characterized in that the blank membrane spraying preparation comprises the following components in percentage by mass: 0.3 to 8 percent of polyvinyl alcohol PVA0588, 0.5 to 5 percent of polyvinyl alcohol PVA 1788 and/or 1 to 10 percent of polyvinyl butyral (PVB), 0 to 5 percent of humectant, 0 to 2 percent of fragrance, 0 to 10 percent of viscosity regulator and the balance of solvent; the solvent is 60 to 100 percent ethanol, ethyl acetate, acetone and/or propylene glycol; and the viscosity regulator is polyoxyethylene hydrogenated castor oil RH40or polyoxyethylene castor oil EL35. When the membrane spraying preparation is sprayed on a skin wound, a membrane is formed within one minute, the membrane maintaining time reaches 5 hours, and the preparation can quickly stop blood and clot blood; and the preparation can save the steps of dressing, replacing gauze, sterilizing and the like with injury to the skin, is favorable for wound healing and does not leave scars.