The production process of Leo bamboo fiber uses non-toxic N-methylmorpholine-N-oxide (NM MO) as a solvent, without any chemical reaction, no waste water and exhaust gas discharge, and the product does not contain any chemical residues harmful to the human body. It is a truly green and environmentally friendly fiber. The product has high strength, high wet modulus, natural antibacterial and antibacterial properties, and it combines the characteristics of natural fiber and synthetic fiber.