A structure which is designed for a slipper used indoors, especially a structure designed for a slipper adapted to being partially torn away, the structure is composed of a main body and a sleeve, wherein the sleeve is slipped over the main body; and the bottom of the sleeve is made of non-woven fabric in plural layers, and the bottom of the sleeve is provided with a tearing line, thereby when the main body of the slipper is worn on a foot, the non-woven fabric structure of the sleeve adsorbs hairs, dusts to get an effect of cleaning a floor; and the bottommost non-woven fabric layer can be torn away by means of the tearing line, thus cleanliness of the bottom of the sleeve can be kept.