The invention discloses domestic multifunctional oil absorption cotton. The oil absorption cotton has a regular-shaped structure; the oil absorption cotton comprises a PE leakage-proof layer, an oil absorption layer and a snap fastener; the PE leakage-proof layer is arranged under the oil absorption layer and distributed at the edge of the oil absorption layer; the snap fastener is arranged on thePE leakage-proof layer at the edge of the oil absorption layer; the snap fastener comprises a thin soft fiber part and a hooked thorn elastic fiber part with hooked thorns, and the thin soft fiber part and the hooked thorn elastic fiber part are distributed in a staggered mode; a high molecular material is arranged in the oil absorption layer, and a compound breathable material is arranged on thesurface of the oil absorption layer. According to the domestic multifunctional oil absorption cotton disclosed by the invention, the oil absorption cotton can be folded to be used or spliced with other oil absorption cotton to be used through the thin soft fiber part and the hooked thorn elastic fiber part of the snap fastener; thus, more requirements of users can be met.