The invention discloses a method for making fast demoulding water transfer paper, and belongs to the technology of paper making. Existing water transferring body paper has the defects that the existing water transferring body paper is poor in glossiness, poor in smoothness, poor in surface delicate sense, poor in size stability and large in hydroscopicity fluctuation, and consequently demoulded patterns are unclear, and demoulding is uneven. According to the method, during surface sizing, special modified starch and sulfonate are compounded for use, and sulfonate has very good degreasing capacity, and can reduce the surface tension and wetting and permeating performance of water well; by dispensing a certain amount of surface glue liquid of sulfonate, a film layer can be evenly formed on the surface of the paper, the good water seepage performance can be kept, and the demoulding time can be effectively shortened; meanwhile, the surface performance of the paper is finished well.