The invention discloses a preparation method for a water-soaking-resistant grass plaited article of everyday use. The preparation method comprises the following steps: (1) removing roots of harvestedfresh grass, putting the grass in a soaking liquid to be fully soaked, and taking out the grass to be air-dried naturally for 8-10 days; (2) plaiting three pieces of grass to a pigtail, and then coating the surface of the pigtail with a polymerized emulsion uniformly; and (3) putting the grass pigtail coated with the polymerized emulsion in an oven, drying the grass pigtail and knitting and forming the grass plaited article of everyday use. The preparation method for the water-soaking-resistant grass plaited article of everyday use disclosed by the invention is simple to operate and low in cost; mechanical properties of the grass plaited article can be enhanced effectively, and the water-soaking-resistant ability of the grass plaited article can be also improved effectively; and the service life of the grass plaited article is prolonged greatly.