The present invention is functional protein fiber, color cotton fabric and their production process, and features that the protein fiber for spinning together with color cotton and weaving fabric contains nanometer or micron level tourmaline particle in 0.5-5 wt%. The production process of the functional protein fiber includes preparing spinning fluid, spinning and post-treatment. The spinning fluid is mixture of protein material, nanometer or micron level tourmaline particle in 0.5-5 wt% and water solution of boric acid or boron in 50-130 ppm, and has viscosity of 800-1200 centipoise. The functional protein fiber and color cotton are woven into the fabric with excellent skin affinity, high permeability, high hydroscopicity, soft feeling, mild luster, high dyeing ability, high color fastness and other advantages. |