The invention relates to the field of the high milecular polymerization emulsion type glue water, in particular to a method for preparing water-soluble hot melt adhesive glue water, The method for preparing the water-soluble hot melt adhesive glue water is characterized in that filling materials and water with calculated amount are added into a blending pan; a stirring motor is started to performrapid stirring; auxiliary agents are added into the blending pan, such as an anti-foaming agent, an anti-mildew agent, an emulsifying agent, a dispersing agent, etc.; after being stirred for a periodof time, the stirring speed is slowed down, EVA emulsion is added; then an anchoring agent is added; and the water-soluble hot melt adhesive glue water is prepared through even stirring. Compared with the prior art, the method has the advantages of simple process and low cost, and the study keeps the development direction of the domestic international high milecular polymerization on track, is market oriented, fills the gap in our country, meets the urgent requirements of the market, can conform to the requirement of the production process in the industrialization, can produce novel hot melt adhesive glue water which is free of environmental pollution, three-waste pollution and aquosity, does not contain organic solvent, is nontoxic and non-explosive and has no danger for combustion, therefore, the study is worthy of popularization and application.