The invention relates to the technical field of coating materials and particularly relates to a normal-temperature-self-crosslinking woodenware paint emulsion and a preparation method therefor. The normal-temperature-self-crosslinking woodenware paint emulsion is characterized by being prepared from the following constituents in parts by weight: 20-120 parts of methyl methacrylate, 20-120 parts of styrene, 80-120 parts of butyl acrylate, 6-30 parts of acetyl acetoxyl ethyl methacrylate, 4-15 parts of methacrylate, 3-15 parts of adipic dihydrazide, 3-15 parts of emulsifier, 1-10 parts of initiator, 3-8 parts of neutralizer, 0.5-2 parts of molecular weight regulator and 300-500 parts of deionized water. Compared with the prior art, the normal-temperature-self-crosslinking woodenware paint emulsion and the preparation method therefor have the advantages that cross-linking reaction for acetyl acetoxyl ethyl methacrylate and adipic dihydrazide is adopted, and the properties of a coating film of the woodenware paint emulsion are excellent.