The types of resin for water-borne wood coatings,existent problems and the latest development of polyacrylate emulsion wood paint were introduced.Nanosize latex was used as film-forming things in water-borne wood paints.It consists of core-shell structured acrylic latex and several kinds of assistants,which can self-crosslink at ambient temperature.This paint has low VOC and high hardness,and also has excellent performance on flexibility and water-resistance.