To provide a laundry basket used for putting laundry washed or to be washed, that is movable on a caster instead of legs and is foldable when not in use.

A foldable laundry basket with a caster comprises a basket which is formed of an elastic resin material such as silicone with a metallic core on an upper part thereof and formed by making a part of cylindrical portion on a parallel line to a bottom part thicker than the other part to make the part a bump like a foldable paper lantern, by providing small holes for the cylindrical portion, and by giving the shape that is easily foldable to a compact form; and comprises a caster on the bottom portion, allowing moving by a single-hand pulling at a handle provided on an upper portion.