Fuente: WIPO "hemp" The invention provides a preparation method of a hemp fiber wig, which comprises the following steps: pretreating hemp fiber, performing ionic liquid finishing, performing softening finishing and performing dyeing finishing to obtain the hemp fiber wig. The artificial hair (wig) is made of hemp fibers, has the excellent properties of sanitation, mildew resistance, bacteriostasis, corrosion resistance, static resistance, ultraviolet absorption, fast moisture absorption and release, good drapability, flame retardance, comfort and the like, is easy to dye, and has a good application prospect. The fiber diameter and mechanical property indexes (breaking strength, elongation at break (rate), work of fracture, work of fracture and the like) of the prepared fibrilia wig are equivalent to those of human hair fibers.